Disease data for two independent groups are summarized into 2 by 2 t.pdf
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Disease data for two independent groups are summarized into 2 by 2 tables stratified by gender. Based on Mantel-Haenszel procedure, the Mantel-Haenszel summary relative risk ratio is 1.6 and the crude relative risk ratio 1.5, the gender variable is 1)Positive confounders 2)Negative confounders 3)Can not be determined Solution ositive confounders because the relative risk ratio are greater than 1.
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In a classic study of blood types in Italy, Dr. Luigi Cavalli sfo.pdf
In a classic study of blood types in Italy, Dr. Luigi Cavalli sforza (1969) found that small,
isolated towns in mountain regions had reduced genetic diversity within populations, but showed
significant genetic differences from one town to the next. In valley regions with more movement
of people from place to place, he found more diversity within the population of any given town,
and fewer differences between towns. If you consider your genetic simulation to represent one
mountain town, and other lab groups to represent different mountain towns, can you explain
Cavalli-Sforza\'s results? How could you alter this lab procedure to simulate what happens in the
valley towns?
Solution
The genetic history of a group of populations is usually analyzed by reconstructing a tree of their
origins. Reliability of the reconstruction depends upon the validity of the hypothesis that genetic
differentiation of the populations is mostly due to population fissions followed by independent
evolution.
Most patterns found in the analysis of human living populations are likely to be consequences of
demographic expansions, determined by technological developments affecting food availability,
transportation, or Military power. During such expansions, both genes and languages are spread
to potentially vast areas.
The first tree of evolution based on gene frequencies of living humans was published 34 years
ago. It was based on genetic distances among 15 populations, 3 per continent, calculated from 5
blood groups, with a total of 20 alleles. The number of genes used was admittedly small, but it
was practically impossible to get more information at that time.
The most important difference is in the position of Europe, which with neighbor joining branches
out first after the splitting of Africans and non-Africans and with maximum likelihood is the last
but one..
I need help with questions 7 and 8 I think what I circled is correct.pdf
I need help with questions 7 and 8 I think what I circled is correct. It am not sure please help the
diamond shaped graph goes to question 7 7. Retia mirabilia (singular rete mirabile) are vascular
bundles that allow fish to secrete O2. In the above figure, red branches indicate lineages with
choroid blue branches indicate those with ladder retia, and white branches indicate absence of
Assuming the phylogeny evolution have been accurately inferred, we can infer that: a)
Swimbladder retia predate choroid retia b) Gains of swimbladder retia primarily took place in
lineages that already had choroid retia c) Loss of choroid retia causes gain of swimbladder retia
Choroid retia have been gained more often than swimbladder retia. 8. These trees for six
different groups of organisms for (A) tree frogs, (B) caecilians, (c) uropeltid snakes, (D)
freshwater fishes, (E) freshwater shrimps, and (F) crabs are all colored based on whether the
species come mainland India or Sri Lanka. Assuming these trees and the reconstruction of
ancestral from accurate, which of the trees includes a single well-supporte geographic
distributions are migration from Sri Lanka back to southern India? a) A, F b) B, C c) C d) A, B
Solution
7.The correct answer is:b.Gains of swimbladder retia primarily took place in lineages that
already had choroid retia.
8.The correct answer is:a. A ,F
Reason: The above answers are the information that can be collected through the graphs
mentioned.
How to write main program for converting infix to postfix that allow.pdf
How to write main program for converting infix to postfix that allow user to enter as many input
as they want ( more than 1 test) and exist when the user enter the empty line?
Solution
Infix Expression :
Notation in which the operator separates its operands. Eg (a + b) * c. Infix notation requires the
use of brackets to specify the order of evaluation.
Postfix Expression :
Reverse Polish Notation or Suffix Notation Notation in which the operator follows its operands.
Eg a + b * c represented as abc*+.
Infix to Postfix Conversion Algo :
code:
Post Fix Expression Evaluation
Now after making the conversion what we have gained. As PostFix strings are parenthesis-free
notation mathematical calculations and precedence is already defined within the string and so
calculation is done very easily.
Postfix Expression evaluation Algo :
code:.
How can I upload a picture in here I tried with image properties ic.pdf
How can I upload a picture in here? I tried with image properties icon and connected the image
to the URL which is from \'picture painting\' or \'microsoft word\' program.
When I am uploading a picture, the picture is shown before posting question but it\'s not shown
after I posted question.
Solution
Take screenshots of that question. Go to \"Ask a study question\" and post question over there.
You can a attach a file upto 10MB. So once again try it..
For some DNAs it is possible to separate the two strands, after dena.pdf
For some DNAs it is possible to separate the two strands, after denaturation, in a CsCl gradient.
Part A What property of any DNA determines where it will band in a CsCl gradient? density,
charge. polarity. solubility
Part B What kind of DNA might have two strands that differ sufficiently in this property that
they could be separated after denaturation?
UT-rich DNA, GC-rich DNA, AT-rich DNA, AC-rich DNA
Solution
PART A: Density
The experiments done by Meselson and Stahl’s supported the model of semiconservative
replication of DNA. In their experiment, they obtained heavy DNA and light DNA by growing
Escherichia coli (E. coli) bacteria with a radioactive nitrogen isotope 15N, and the more common
isotope of nitrogen 14N respectively.
In the present experiment, the bacteria grown in 15N medium were allowed to grow in 14N
medium. Then the cultured bacteria were taken and the isolated DNA was dissolved and
centrifuged caesium chloride solution (CSCl). Now, the concentration gradient is established in
the test tube, and the DNA molecules move according to the gradient until they reach an
equilibriumdensity with the solution. DNA with 15N strand is heavier than the DNA with 14N
strand, so it reaches the bottom of the test tube.
PART B: GC-rich DNA
GC rich DNA contains high density, which also has high melting point..
Explain how stem cells obtained from IVF leftovers and somatic cell .pdf
Explain how stem cells obtained from IVF leftovers and somatic cell nuclear transfer differ in
terms of the sources of their genomes.
Solution
Oocytes from women were extracted and inseminated with thaed donor sperm, after the process
of insemination oocytes were successfully fertilized and developed into blastocyst stage and the
inner cell masses of the blastocyst that were removed yielded stem cell lines. From a left over
IVF, extraction of single blastomere is helpful.
In somatic cell nuclear transfer, the nucleus of a somatic cell is transferred to the cytoplasm of an
ennucleated egg which then becomes a zygote and is then allowed to develop to blastocyst stage.
Reference
1. Josefson, D. (2001). Embryos created for stem cell research.British medical journal,
323(7305), 127..
Does it appear that there is a difference in mean population size....pdf
Does it appear that there is a difference in mean population size... In 1995. a survey of 109
countries was conducted which recorded (among several other variables) the dominant religion
of the country as well as its population. It was thought that perhaps religion was somehow
correlated with population, so a one-way ANOVA was conducted on the data. An ANOVA
summary from the analysis is below: Does it appear that there is a difference in mean population
size for the various religions? Select the proper conclusion below. (Use a = 0.05.)
Solution.
Discussion Post The Constitution 19 19 Think about the discussion in.pdf
Discussion Post: The Constitution 19 19 Think about the discussion in chapter two on what the
led to the \"second founding\", the experiences of the colonists, and issues the framers
encountered in establishing the constitution. What was the primary aim of the framers of the
Constitution in creating that document? Why did they think it was necessary? What did they
hope to accomplish and avoid? Overall, do you think they were successful? Why or why not?
Write approximately 3 paragraphs in response to the assignment, then make constructive
comments on the posts of at least 2 other students. If you agree or disagree with one of your
classmates responses respectfully give a detailed response as to why. Saying\"I agree\" or \"I
disagree\" alone will not count as a constructive response to others\' work.
Solution
In 1865-86, the U.S. was in a dilema. The Civil War was over. President Lincoln was dead. And
the nation was beginning to face a series of unanswerable questions in the after result of the Civil
War like:
How does the U.S. answer the Declaration of Independence’s call for equality?
How does the country define what it means to be a U.S. citizen?
How broadly should the right to vote be like?
And what role should the federal government play in protecting the civil rights of all?
These are the some of the questions raised post Civil War after Lincoln\'s death. In answer to
them the FED Govt led by President Andrew Jhonson of republican party gave a speech in 1866.
The major part of his speech was indicating some enormous changes in constitution of U.S by
the results of Civil War.
As a result of this U.S \'s first Civil Rights bill passed on APR 1866 along the amendments in the
constitution took place (13,14,15th ) which was termed as Second Founding.
I do think it is necesarry to bring some social equality in the times .As many years the Slave
System was in act in U.S and it is one of the Sparking cause for the Civil War.
Yes, It could able to restrict the nerves of the people who are suppressed over year without
getting provoked..
Recommended
In a classic study of blood types in Italy, Dr. Luigi Cavalli sfo.pdf
In a classic study of blood types in Italy, Dr. Luigi Cavalli sforza (1969) found that small,
isolated towns in mountain regions had reduced genetic diversity within populations, but showed
significant genetic differences from one town to the next. In valley regions with more movement
of people from place to place, he found more diversity within the population of any given town,
and fewer differences between towns. If you consider your genetic simulation to represent one
mountain town, and other lab groups to represent different mountain towns, can you explain
Cavalli-Sforza\'s results? How could you alter this lab procedure to simulate what happens in the
valley towns?
Solution
The genetic history of a group of populations is usually analyzed by reconstructing a tree of their
origins. Reliability of the reconstruction depends upon the validity of the hypothesis that genetic
differentiation of the populations is mostly due to population fissions followed by independent
evolution.
Most patterns found in the analysis of human living populations are likely to be consequences of
demographic expansions, determined by technological developments affecting food availability,
transportation, or Military power. During such expansions, both genes and languages are spread
to potentially vast areas.
The first tree of evolution based on gene frequencies of living humans was published 34 years
ago. It was based on genetic distances among 15 populations, 3 per continent, calculated from 5
blood groups, with a total of 20 alleles. The number of genes used was admittedly small, but it
was practically impossible to get more information at that time.
The most important difference is in the position of Europe, which with neighbor joining branches
out first after the splitting of Africans and non-Africans and with maximum likelihood is the last
but one..
I need help with questions 7 and 8 I think what I circled is correct.pdf
I need help with questions 7 and 8 I think what I circled is correct. It am not sure please help the
diamond shaped graph goes to question 7 7. Retia mirabilia (singular rete mirabile) are vascular
bundles that allow fish to secrete O2. In the above figure, red branches indicate lineages with
choroid blue branches indicate those with ladder retia, and white branches indicate absence of
Assuming the phylogeny evolution have been accurately inferred, we can infer that: a)
Swimbladder retia predate choroid retia b) Gains of swimbladder retia primarily took place in
lineages that already had choroid retia c) Loss of choroid retia causes gain of swimbladder retia
Choroid retia have been gained more often than swimbladder retia. 8. These trees for six
different groups of organisms for (A) tree frogs, (B) caecilians, (c) uropeltid snakes, (D)
freshwater fishes, (E) freshwater shrimps, and (F) crabs are all colored based on whether the
species come mainland India or Sri Lanka. Assuming these trees and the reconstruction of
ancestral from accurate, which of the trees includes a single well-supporte geographic
distributions are migration from Sri Lanka back to southern India? a) A, F b) B, C c) C d) A, B
Solution
7.The correct answer is:b.Gains of swimbladder retia primarily took place in lineages that
already had choroid retia.
8.The correct answer is:a. A ,F
Reason: The above answers are the information that can be collected through the graphs
mentioned.
How to write main program for converting infix to postfix that allow.pdf
How to write main program for converting infix to postfix that allow user to enter as many input
as they want ( more than 1 test) and exist when the user enter the empty line?
Solution
Infix Expression :
Notation in which the operator separates its operands. Eg (a + b) * c. Infix notation requires the
use of brackets to specify the order of evaluation.
Postfix Expression :
Reverse Polish Notation or Suffix Notation Notation in which the operator follows its operands.
Eg a + b * c represented as abc*+.
Infix to Postfix Conversion Algo :
code:
Post Fix Expression Evaluation
Now after making the conversion what we have gained. As PostFix strings are parenthesis-free
notation mathematical calculations and precedence is already defined within the string and so
calculation is done very easily.
Postfix Expression evaluation Algo :
code:.
How can I upload a picture in here I tried with image properties ic.pdf
How can I upload a picture in here? I tried with image properties icon and connected the image
to the URL which is from \'picture painting\' or \'microsoft word\' program.
When I am uploading a picture, the picture is shown before posting question but it\'s not shown
after I posted question.
Solution
Take screenshots of that question. Go to \"Ask a study question\" and post question over there.
You can a attach a file upto 10MB. So once again try it..
For some DNAs it is possible to separate the two strands, after dena.pdf
For some DNAs it is possible to separate the two strands, after denaturation, in a CsCl gradient.
Part A What property of any DNA determines where it will band in a CsCl gradient? density,
charge. polarity. solubility
Part B What kind of DNA might have two strands that differ sufficiently in this property that
they could be separated after denaturation?
UT-rich DNA, GC-rich DNA, AT-rich DNA, AC-rich DNA
Solution
PART A: Density
The experiments done by Meselson and Stahl’s supported the model of semiconservative
replication of DNA. In their experiment, they obtained heavy DNA and light DNA by growing
Escherichia coli (E. coli) bacteria with a radioactive nitrogen isotope 15N, and the more common
isotope of nitrogen 14N respectively.
In the present experiment, the bacteria grown in 15N medium were allowed to grow in 14N
medium. Then the cultured bacteria were taken and the isolated DNA was dissolved and
centrifuged caesium chloride solution (CSCl). Now, the concentration gradient is established in
the test tube, and the DNA molecules move according to the gradient until they reach an
equilibriumdensity with the solution. DNA with 15N strand is heavier than the DNA with 14N
strand, so it reaches the bottom of the test tube.
PART B: GC-rich DNA
GC rich DNA contains high density, which also has high melting point..
Explain how stem cells obtained from IVF leftovers and somatic cell .pdf
Explain how stem cells obtained from IVF leftovers and somatic cell nuclear transfer differ in
terms of the sources of their genomes.
Solution
Oocytes from women were extracted and inseminated with thaed donor sperm, after the process
of insemination oocytes were successfully fertilized and developed into blastocyst stage and the
inner cell masses of the blastocyst that were removed yielded stem cell lines. From a left over
IVF, extraction of single blastomere is helpful.
In somatic cell nuclear transfer, the nucleus of a somatic cell is transferred to the cytoplasm of an
ennucleated egg which then becomes a zygote and is then allowed to develop to blastocyst stage.
Reference
1. Josefson, D. (2001). Embryos created for stem cell research.British medical journal,
323(7305), 127..
Does it appear that there is a difference in mean population size....pdf
Does it appear that there is a difference in mean population size... In 1995. a survey of 109
countries was conducted which recorded (among several other variables) the dominant religion
of the country as well as its population. It was thought that perhaps religion was somehow
correlated with population, so a one-way ANOVA was conducted on the data. An ANOVA
summary from the analysis is below: Does it appear that there is a difference in mean population
size for the various religions? Select the proper conclusion below. (Use a = 0.05.)
Solution.
Discussion Post The Constitution 19 19 Think about the discussion in.pdf
Discussion Post: The Constitution 19 19 Think about the discussion in chapter two on what the
led to the \"second founding\", the experiences of the colonists, and issues the framers
encountered in establishing the constitution. What was the primary aim of the framers of the
Constitution in creating that document? Why did they think it was necessary? What did they
hope to accomplish and avoid? Overall, do you think they were successful? Why or why not?
Write approximately 3 paragraphs in response to the assignment, then make constructive
comments on the posts of at least 2 other students. If you agree or disagree with one of your
classmates responses respectfully give a detailed response as to why. Saying\"I agree\" or \"I
disagree\" alone will not count as a constructive response to others\' work.
Solution
In 1865-86, the U.S. was in a dilema. The Civil War was over. President Lincoln was dead. And
the nation was beginning to face a series of unanswerable questions in the after result of the Civil
War like:
How does the U.S. answer the Declaration of Independence’s call for equality?
How does the country define what it means to be a U.S. citizen?
How broadly should the right to vote be like?
And what role should the federal government play in protecting the civil rights of all?
These are the some of the questions raised post Civil War after Lincoln\'s death. In answer to
them the FED Govt led by President Andrew Jhonson of republican party gave a speech in 1866.
The major part of his speech was indicating some enormous changes in constitution of U.S by
the results of Civil War.
As a result of this U.S \'s first Civil Rights bill passed on APR 1866 along the amendments in the
constitution took place (13,14,15th ) which was termed as Second Founding.
I do think it is necesarry to bring some social equality in the times .As many years the Slave
System was in act in U.S and it is one of the Sparking cause for the Civil War.
Yes, It could able to restrict the nerves of the people who are suppressed over year without
getting provoked..
Darwinian evolution, aka Darwinism, was merged with population g.pdf
Darwinian evolution, aka \"Darwinism\", was merged with population genetics in the early 1900s
to produce what is now commonly referred to as:
a. Neo-Lamarkianism
b. orthogenesis
c. mutationism
d. the modern synthesis
Solution
Ans:
A theory of the late 1800s and early 1900s, based on Lamarckism, that adaptive characteristics
acquired by an organism during its lifetime could be inherited by its offspring.
Ans: option a. Neo-Lamarkianism.
Determine the theoretical probability of flipping a TAIL on a coin. .pdf
Determine the theoretical probability of flipping a TAIL on a coin. Write this probability as a
fraction, decimal, AND percent,
Solution
solution-
when a coin is tossed total outcomes =2 (head or tail)
desired outcome = 1 (tail)
hence
probability = desired outcome/ total no. of outcome = 1/2 =0.5 =50%.
Construct a java method. This method chooses the number of sti.pdf
Construct a java method.
* This method chooses the number of sticks to pick up based on the
* sticksRemaining and actionRanking parameters.
*
* Algorithm: If there are less than Config.MAX_ACTION sticks remaining
* then the chooser must pick the minimum number of sticks (Config.MIN_ACTION).
* For Config.MAX_ACTION or more sticks remaining then pick based on the
* actionRanking parameter.
*
* The actionRanking array has one element for each possible action. The 0
* index corresponds to Config.MIN_ACTION and the highest index corresponds
* to Config.MAX_ACTION. For example, if Config.MIN_ACTION is 1 and
* Config.MAX_ACTION is 3, an action can be to pick up 1, 2 or 3 sticks.
* actionRanking[0] corresponds to 1, actionRanking[1] corresponds to 2, etc.
* The higher the element for an action in comparison to other elements,
* the more likely the action should be chosen.
*
* First calculate the total number of possibilities by summing all the
* element values. Then choose a particular action based on the relative
* frequency of the various rankings.
* For example, if Config.MIN_ACTION is 1 and Config.MAX_ACTION is 3:
* If the action rankings are {9,90,1}, the total is 100. Since
* actionRanking[0] is 9, then an action of picking up 1 should be chosen
* about 9/100 times. 2 should be chosen about 90/100 times and 1 should
* be chosen about 1/100 times. Use Config.RNG.nextInt(?) method to
* generate appropriate random numbers.
*
* @param sticksRemaining
* The number of sticks remaining to be picked up.
* @param actionRanking
* The counts of each action to take. The 0 index corresponds to
* Config.MIN_ACTION and the highest index corresponds to
* Config.MAX_ACTION.
* @return The number of sticks to pick up. 0 is returned for the following
* conditions: actionRanking is null, actionRanking has a length of
* 0, or sticksRemaining is <= 0.
Solution
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
String userName = \"\";
String intialStringError = \"\";
int intialSticks = 0;
String prompt = \"How many sticks are there on the table initially (10-100)? \";
//Max number of tries
int[] numSticksArray = new int[100];
boolean intialBooleanError = false;
boolean userChoiceDone = false;
int userChoice = 0;
String userError = \"\";
String friendName = \"\";
int userStickNum = 0;
String userStickError = \"\";
String friendStickError = \"\";
boolean friendTurnOver = true;
boolean userTurnOver = true;
int z = 0;
System.out.print(\"\ What is your name? \");
userName = input.nextLine();
System.out.println(\"Hello \" + userName.trim() + \".\");
intialSticks = promptUserForNumber(input, prompt, Config.MIN_STICKS,
Config.MAX_STICKS);
System.out.println(\"\ Would you like to:\");
System.out.println(\" 1) Play against a friend\");
System.out.println(\" 2) Play against computer (basic)\");
System.out.println(\" 3) Play against computer with AI\");
do{
System.out.print(\"Which do you choose (1,2,3)? \");
if(input.hasNextInt())
{
userChoice = inp.
Complete the sentences with the correct terms. Solution1. Phot.pdf
Complete the sentences with the correct terms.
Solution
1. Photosynthesis uses light energy to produce ATP, NADPH and O2.
2. Chlorophyll captures the light energy for photosynthesis.
3. ATP and NADPH drive the calvin cycle
4. Calvin cycle performs carbon fixation during photosynthesis.
5. Water is converted into oxygen to release electrons in the light reactions..
BIOCHEMISTRY 1. explain carbohydrate nonmenclature (aldose vs. ket.pdf
BIOCHEMISTRY
1. explain carbohydrate nonmenclature (aldose vs. ketose and number of carbons, numbering of
carbons), including characterizations of chirality (optical isomers, enantiomers, diastereomers,
and epimers)
2.identify common and important disaccarides
3.distinguish all structural and biochemical similarities and differences between starch,
cellulose, and glycogen
4.what are fat soluble vitamins and what are their roles in the body
Solution
1. The monosaccharides are the simple sugar molecules with general formula (CH2O) n. They
are mainly composed of Carbon, Hydrogen and Oxygen. Monosaccharides possess functional
groups such as aldehydes and ketones in their structure. Basing on the functional group present
they are named as aldose - that contains an aldehyde group, ketose - that contains a ketone group.
They also contain many hydroxyl groups. Hence, monosaccharides are called as polyhydroxy
aldehydes or polyhydroxy ketones. A Hexose having ketone group is known as Ketohexose.
Fructose is an example of ketohexose. . Hexose with an aldehyde group is called as Aldohexose.
Example of an Aldohexose is Glucose.
A Triose is a monosaccharide having three carbon atoms in its skeleton. Glyceraldehyde is an
example of a triose.A Pentose is a monosaccharide having five carbon atoms in its structure.
Ribose is an example of a pentose. Both triose and pentose are monosaccharides differing in
number of carbon atoms in their skeleton.
The molecules having a Carbon atom bonded to four different functional groups are called
‘chiral molecules’. The center carbon atom is called chiral carbon. Any molecule having a chiral
carbon exists in a pair of enantiomers, which are nonsuperimposable mirror images. Stereo
isomers are the molecules having same molecular formula and same bonding but differ in spatial
arrangement of atoms. They are mirror images. They rotate the plane polarized light either to
clockwise or to counter clockwise. If they rotate the plane polarized light to clockwise, they are
called as ‘dextro rotatory’ (D forms) and are indicated by (+) sign. If they rotate the plane
polarized light to counter clockwise, they are called as ‘levo rotatory’ (L forms) and are indicated
by (-) sign.
Diastereomers can be defined as a pair of stereo isomers that are not enantiomers. This indicates
that the isomers are not mirror images and they totally differ from each other. Enantiomers
though nonsuperimposable mirror images they have same physical and chemical properties, they
differ only in rotation of plane polarized light. Diastereomers have different physical and
chemical properties.
2. The disaccharides are composed of two monosaccharide units. Maltose, Lactose and Sucrose
are the examples of disaccharides. These are referred by their common names like, Malt sugar,
Milk sugar and Table sugar. Galactose is a hexose molecule. It is one of the components of
disaccharide Lactose or milk sugar. It is found in the milk of mammals. -D - N -
acetylgalactosami.
Can a degree 3 polynomial intersect a degree 4 polynomial in exactly .pdf
Can a degree 3 polynomial intersect a degree 4 polynomial in exactly five points? Explain.
Solution
Let, f(x) be degree 3 polynomial
ANd g(x) be degree 4 polynoimal
So points of intersection are given by roots of the polynomial
h(x)=g(x)-f(x)
But, h(x) is degree 4 polynoimal and hence has atmost 4 roots
So there can be atmost 4 points of intersection.
All chordates have while all vertebrates have homeothermya notochor.pdf
All chordates have while all vertebrates have homeothermy/a notochord sometime during
development. a backbone/live birth and mammary glands in the females. a notochord sometime
during their development/a backbone and bilateral symmetry. a backbone/fur or hair. Which of
the following is true of the bonobo? the males are highly dominant, and the females only mate
with the most dominant male. they are more closely related to the gibbons than to any other
primate. they are an Old World monkey that lives in central African savannahs. all of the above
are true. none of the above are true. The term \"hominoid\" refers to monkeys and apes. apes
and humans. tarsiers and lemurs. prosimians and monkeys.
Solution
QUESTION 15: The term hominoid refers to
Ans- Apes and monkeys.
A member of the biological superfamily Hominoidea, including all modern great apes and
humans and a number of their extinct ancestors and relatives.
QUESTION 13: All chordates have -----while all vetebrates have -----
Ans: C--a notochord something during their development/a backbone and bilateral symmetry
Vertebrates are characterized by the presence of a vertebra or backbone skeletal bones that form
an endoskeleton a bilaterally symmetrical structure.
The notochord is replaced or surrounded by the backbone in the organism\'s adult
stage,Chordates also have pharyngeal slits.
Chordates also have a dorsal nerve cord that runs down the length of the organism.
QUESTION 14: which of the following is true of the bonobo
ANS : None of the above are true.
6. What factor describes the overall thermal performance of a buildin.pdf
6. What factor describes the overall thermal performance of a building assembly?
Solution
Solar energy ( temperature) is the factor that describes overall thermal performance of building
assembly.
Because solar energy is stored in the the form of thermal energy in the building assembly
And this energy is responsible for overall thermal performance of building assembly.
8) IntheSpapcelabLifeSciencePayload,14maleratsweresenttospace.Uponth.pdf
8) IntheSpapcelabLifeSciencePayload,14maleratsweresenttospace.Upontheirrerurn,thered
bloodcellmass(inmilliliters)oftheratswasdetermined.controlgroupof14maleratswasheld
underthesameconditionsasthespacerats,andtheirredbloodcellmasswasalsodetermined
whenthespaceratswasreturned.Theproject,ledbyDr.PaulX.Callahan,resultedinthedatalisted
inthetablebelow.Doestheevidencesupporttheclaimthattheflightanimalshavedifferentredblood
cellmassfromofthecontrolanimal?
Flight:
Control:
9.79 7.54
8.55 9.14
8.59
8.64
7.43
7.21
6.87
7.89
6.85
7.00
8.80
9.30
8.03
6.39
8.65
6.99
8.40
9.66
7.62
7.44
8.70
7.33
8.58
9.88
9.94
7.14
b)Use95%confidenceintervaltoconstructconfidenceintrevaltoestimatethedifferencebetween
thetwopopulationmeans.doestheconfidenceintervalsupporttheclaim?Explain.
8.59
8.64
7.43
7.21
6.87
7.89
6.85
7.00
8.80
9.30
8.03
6.39
Solution.
After reading about the history of welfare in the USA, describe in y.pdf
After reading about the history of welfare in the USA, describe in your own words how our
current welfare system came to be. What are your thoughts about Sweden\'s welfare system?
How would creating a similar system in the USA impact the field of human services? Why does
the USA not have a welfare system similar to Sweden?
Solution
The US has the largest and most technologically powerful economy in the world, with a per
capita GDP of $49,800. In this market-oriented economy, private individuals and business firms
make most of the decisions, and the federal and state governments buy needed goods and
services predominantly in the private marketplace. US business firms enjoy greater flexibility
than their counterparts in Western Europe and Japan in decisions to expand capital plant, to lay
off surplus workers, and to develop new products. At the same time, they face higher barriers to
enter their rivals\' home markets than foreign firms face entering US markets. US firms are at or
near the forefront in technological advances, especially in computers and in medical, aerospace,
and military equipment; their advantage has narrowed since the end of World War II. The onrush
of technology largely explains the gradual development of a \"two-tier labor market\" in which
those at the bottom lack the education and the professional/technical skills of those at the top
and, more and more, fail to get comparable pay raises, health insurance coverage, and other
benefits. Since 1975, practically all the gains in household income have gone to the top 20% of
households. Since 1996, dividends and capital gains have grown faster than wages or any other
category of after-tax income. Imported oil accounts for nearly 55% of US consumption. Crude
oil prices doubled between 2001 and 2006, the year home prices peaked; higher gasoline prices
ate into consumers\' budgets and many individuals fell behind in their mortgage payments. Oil
prices climbed another 50% between 2006 and 2008, and bank foreclosures more than doubled
in the same period. Besides dampening the housing market, soaring oil prices caused a drop in
the value of the dollar and a deterioration in the US merchandise trade deficit, which peaked at
$840 billion in 2008. The sub-prime mortgage crisis, falling home prices, investment bank
failures, tight credit, and the global economic downturn pushed the United States into a recession
by mid-2008. GDP contracted until the third quarter of 2009, making this the deepest and longest
downturn since the Great Depression. To help stabilize financial markets, in October 2008 the
US Congress established a $700 billion Troubled Asset Relief Program (TARP). The
government used some of these funds to purchase equity in US banks and industrial
corporations, much of which had been returned to the government by early 2011. In January
2009 the US Congress passed and President Barack OBAMA signed a bill providing an
additional $787 billion fiscal stimulus to be used over 10 ye.
You are examining a copolymer for its potential as a material for .pdf
You are examining a copolymer for it\'s potential as a material for a vascular graft. you are trying
to determine whether you want a high or low degree of crystallinity in the material. what type of
structures for copolymers have a higher probability for crystallization?
Solution
Answer:
Copolymers are formed when two or more different types of monoers polymerize in a process
called copolymerization.
A block polymer is formed by the copolymerization of different copolymerized monomers. The
first component is styrene followed by methyl methacrylate which forms at the end of
polystyrene chain. Alternating polymers have regular repeating units of two different monomeric
units.
Block and alternating polymers can form long range repeated, ordered structures and thus have a
higher affinity for crystallization..
write a pic18 divide 2 input variables. num and denom..pdf
write a pic18 divide 2 input variables. num and denom.
Solution
[n, d] = numden(sym(four/5))
n =
4
d =
5
Numerators and Denominators of Symbolic Expressions
locate the numerator and denominator of the symbolic expression.
syms x y
[n,d] = numden(x/y + y/x)
n =
x^2 + y^2
d =
x*y
Numerators and Denominators of Matrix elements
locate the numerator and denominator of every element of a symbolic matrix.
syms a b
[n,d] = numden([a/b, 1/b; 1/a, 1/(a*b)])
n =
[ a, 1]
[ 1, 1]
d =
[ b, b]
[ a, a*b]
associated Examples
Extract Numerators and Denominators of Rational Expressions
enter Arguments
fall apart all
A — enter
symbolic range symbolic feature symbolic matrix
input, exact as a symbolic quantity, expression, feature, vector, or matrix..
Why would some toxicology studies focus on the population level and .pdf
Why would some toxicology studies focus on the population level and others focus at the
community or ecosystem levels?
Solution
The study of toxicology under ecological parameters like population level and others, called as
Ecological Toxicology. Under this study, the focus is on environmental contaminants
consequences. They affect every individual of community and its structure and population
dynamics. The scientists and analyst study the physiological, reproductive and behavioral effects
occur through the consequences. Ecological Toxicology helps in finding the lethal, sub lethal,
chronic, and genetic effects. These studies provide a base for making an ecosystem preventive
and secure..
why are the tropics so diverseplease expaint this queation in det.pdf
why are the tropics so diverse?
please expaint this queation in details.
Solution
Answer:
Added biodiversity in the tropics as compared to the higher latitudes probably stems from the
flux of photons in the tropics, but our earth is a dynamic system and thus its far more
complicated than that.
Mutations can occur randomly, evolutionarily the strongest contributor is error during DNA
replication. This can be argued to be a function of temperature and if so, then temperature plays a
small role in DNA copying.
Another contributor would be that of the flux of photons. Photons have the ability to cause
mutations and there is a noticeable difference in photon flux between the higher latitudes and the
tropics.
The tropics are enormous, spreading across the waistline of the globe. Increasing size provides
ample opportunity for geographic separation for groups within a species. In conjunction with this
is the fact that this broad band girdling the planet has, overall, fairly constant temperature and
humidity.
The tropics also exhibit relatively stable climatic conditions which will result in steady food
supplies for animals as animals could specialize on 1 to 5 food sources and they would be
available more or less year round.
The richness of tropical rainforests in plant life is perhaps due to high levels of solar energy. The
sun lies overhead during the entire year, there is a great deal of light available to support the
plants in the lower strata, more than twice as much as is available to a temperate forest. And
since plants in the tropics don’t suffer from (low) temperature stress, they can devote their
energies to growth and reproduction at even very low light intensities. Light intensities in
tropical forests are also very patchy and heterogeneous. Thus, plants living under the tall canopy
can specialize in exploiting particular light regimes, many of which are not available in
temperate forests. And with plant diversity comes animal diversity, since all of these plants
provide food and shelter for animals.
High mean annual temperature, primary productivity, and evapotranspiration rates are probably
all involved also, but we do not know whether or not the higher energy levels found in
rainforests are causal factors in the generation of biodiversity
The presence of pathogens is a contributing factor but it complex because their related to higher
temperatures but they will cause speciations as organism will need to develop the ability to
defend against them
Storms and high winds are common in tropical areas, and frequently lead to considerable damage
and the formation of fairly large gaps in forests. When the gap in the forest is small (as when one
or a few trees fall), pioneer species will normally enter the gap and flourish, eventually being
replaced by climax tree species.
Tropical regions are large, as well as topographically complex. As mentioned above, the
complexity of the rainforest environment allows for considerable specialization of org.
Which organization coordinates the assignment of Internet domain nam.pdf
Which organization coordinates the assignment of Internet domain names, IP addresses, protocol
parameters, and port numbers?
A. The FCC
B. The IEEE
C. The IETF
D. The ICANN
Solution
Answer D is the correct answer. The Internet Corporation for Assigned Names and Numbers
(ICANN) is a technical coordination body for the Internet. ICANN coordinates the assignment of
Internet domain names, IP addresses, protocol parameters, and port numbers. The FCC (Federal
Communications Commission) is a regulatory agency of the U.S. government, so answer A is
incorrect. The IEEE is another standards body that develops standards for computer networking
and many other telecommunications areas, so answer B is incorrect. The Internet Engineering
Task Force (IETF) is a large, open international community of network engineers, researchers,
and vendors that provide technical guidance for the Internet community, so answer C is also
incorrect..
Which of the following statements is (are) true I For cash flow, .pdf
Which of the following statements is (are) true: I : For cash flow, prediction of inflows and
outflows of money is not important. II: Cash flow is about having a good idea when money
comes in and when it goes out.
Statement I is false; Statement II is true
Statement I is true; Statement II is false
Both statements are false
Both statements are true
Solution
Statement I is false; Statement II is true
Prediction of inflows and outflows are important in cash flows.
Which featuresaspects of early mammalhumandevelopment make PGD pos.pdf
Which features/aspects of early mammal/humandevelopment make PGD possible?
Find five features.
Solution
1.Possibility of human embroys to develop in IVF techniques.
2.Measuring cytoplasmic enzyme activity in individual embryonic cells can be done in early
mammals/humans.
3.The ability to extract DNA and genetically characterize single sperm and diploid cells through
modern techniques.
4.Identifcation of autosomal recessive disorders in human development
5.Fertile couples, or infertile couples who are following assisted conception treatment (such as
IVF), might opt for some form of prenatal diagnosis of their condition once a pregnancy is
established, either by AMNIOCENTESIS or CHORIONIC VILLUS SAMPLING (CVS) with
the option of terminating an affected pregnancy..
What are stress and stressors Identify potential sources and conseq.pdf
What are stress and stressors? Identify potential sources and consequences of stress, and describe
alternative stress management strategies.
Solution
There are external or internal (to individual) sources of stress, among external sources we have:
Major life changes, Work or school, Relationship difficulties, Financial problems, Being too
busy and Children and family. Additionally, we have internal ones as Chronic worry, Pessimism,
Negative self-talk, Unrealistic expectations excess of Perfectionism, All-or-nothing attitude and
Rigid thinking, lack of flexibility.What is stress?
Stress is a normal response of human body, which under threat contexts releases chemicals that
give to the person additional strength and energy to increase his/her capability to protect himself.
The core issue is that this situation should be punctual but never a constant in a healthy person, it
should be an extraordinary response, because if it would be frequent, it would be too demanding
to the body, and here is the problem, contemporary average person is exposed to several frequent
stress situations, and his/her body does not have time to recover itself.
What are stressors?
They are situations, things or persons whom have the capability to activate this extraordinary
response of the body, because they demand more attention and energy from stressed individual.
Identify potential sources of stress.
There are external or internal (to individual) sources of stress, among externals we have: Major
life changes, Work or school, Relationship difficulties, Financial problems, Being too busy and
Children and family. Additionally, we have internal ones as Common internal causes of stress,
Chronic worry, Pessimism, Negative self-talk, Unrealistic expectations/Perfectionism, All-or-
nothing attitudeandRigid thinking, lack of flexibility
Identify consequences of stress.
Memory problems, seeing only the negative, irritability or short temper, depression or general
unhappiness, sense of loneliness and isolation, chest pain, rapid heartbeat, agitation, inability to
relax, poor judgment, using alcohol, cigarettes, or drugs to relax, anxious or racing thoughts,
constant worrying, nervous habits, eating more or less, nausea, dizziness, loss of sex appetite,
moodiness, procrastinating or neglecting responsibilities, frequent colds, sleeping too much or
too little, feeling overwhelmed, aches and pains, diarrhea or constipation, isolating yourself from
others.
Describe alternative stress management strategies.
Practicing physical activity, to recover nervous system balance.
Feeding yourself well and healthy, to gain energy to the body and mind.
Sleeping enough, to rest and keep clear mind.
Activating social life, meeting friends, visiting family, spaces to other kind of experiences.
Scheduling relaxation time, to connect with yourself, praying, meditation, anything you prefer..
void ReplaceCharInBuffer(bufferADT buffer, char oldch, char newch);.pdf
void ReplaceCharInBuffer(bufferADT buffer, char oldch, char newch);
When this function is called, it should start searching from the current cursor position, looking
for the next occurrence of the character oldch in the rest of the buffer.
If it finds it, simply replace oldch with newch. Search should leave the cursor after the last
character replaced in the buffer.
If oldch does not occur between the cursor and the end of the buffer, then there is nothing to
replace and thus search should leave the cursor unchanged (in the original place)
int SearchStrBuffer(bufferADT buffer, char* str);
When this function is called, it should start searching from the current cursor position, looking
for the next occurrence of the string str in the rest of the buffer.
If it finds it, search should leave the cursor after the found string and return the value TRUE or 1
If the string str does not occur between the cursor and the end of the buffer, then search should
leave the cursor unchanged and return FALSE or 0
First, you need to add the above prototypes into buffer.h.
Second, you need to implement them in listbuf.c
Third, you need to update editor.c so that you can call those functions. So include the following
in editor.c:
o If user enters: Rxy, your editor.c should call ReplaceCharInBuffer (buffer, \'x\', \'y\') to replace
all the occurrences of character \'x\' with character \'y\' after the cursor.
o If user enters: Sxyz, your editor.c should call SearchStrBuffer (buffer, \"xyz\") to search string
\"xyz\" in the buffer after the cursor.
Solution
/*
* File: editor.c
* --------------
* This program implements a simple character editor, which
* is used to test the buffer abstraction. The editor reads
* and executes simple commands entered by the user.
*/
#include
#include
#include \"genlib.h\"
#include \"buffer.h\"
#include \"simpio.h\"
#include \"string.h\"
/* Private function prototypes */
static void ExecuteCommand(bufferADT buffer, string line);
static void HelpCommand(void);
/* Main program */
main()
{
bufferADT buffer;
buffer = NewBuffer();
while (TRUE) {
printf(\"*\");
ExecuteCommand(buffer, GetLine());
DisplayBuffer(buffer);
}
FreeBuffer(buffer);
}
/*
* Function: ExecuteCommand
* Usage: ExecuteCommand(buffer, line);
* ------------------------------------
* This function parses the user command in the string line
* and executes it on the buffer.
*/
static void ExecuteCommand(bufferADT buffer, string line)
{
int i;
switch (toupper(line[0])) {
case \'R\':
if(strlen(line) >= 3) {
ReplaceCharInBuffer(buffer, line[1], line[2]);
} else {
printf(\"Illegal command\ \");
}
break;
case \'S\':
SearchStrBuffer(buffer, &line[1]);
break;
case \'I\': for (i = 1; line[i] != \'\\0\'; i++) {
InsertCharacter(buffer, line[i]);
}
break;
case \'D\': DeleteCharacter(buffer); break;
case \'F\': MoveCursorForward(buffer); break;
case \'B\': MoveCursorBackward(buffer); break;
case \'J\': MoveCursorToStart(buffer); break;
case \'E\': MoveCursorToEnd(buffer); break;
case \'H\':.
What are the Pros and Cons on how Technology has changed teaching te.pdf
What are the Pros and Cons on how Technology has changed teaching techniques for teachers?
Solution
List of the Advantages of Technology in Education
1. Promotes independent learning in students
The internet is a treasure trove of information. Practically anything you need to know can be
found online. Although there is a question of the credibility of the source and the data provided,
it can still serve as an educational resource for students. Even without assistance from parents
and teachers, students can just look up their lessons online.
Unlike regular textbooks, electronic books and web-based content are updated in real time,
feeding students with the most current information they can get their hands on, helping them
become more knowledgeable even outside the classroom setting.
2. Prepares students for the future
From the way technological advancements are going, it is obvious that the future will be digital
and technology-focused. If students are well-versed on using technology to collaborate and
communicate as early as now, they will not have trouble fitting in, competing and finding jobs in
the future. Being familiar with using at least one form of technology at an early age will help
them become comfortable using it, and eventually develop other skills necessary to handle other
innovative devices and processes.
3. Has the potential to lower textbook and tuition prices
With resources more accessible and in great abundance, the cost of textbooks is likely to
decrease. It is also possible that students may no longer need to buy a textbook, if it is converted
into digital format. The actual books can stay in the classroom, while the content is saved on a
student’s computer.
Tuition will also decrease when learning is done online, rather than inside the classroom. By
taking out the factors that contribute to a higher tuition fee, such as utility bills and transportation
allowance of teachers, the overall cost of education will be lower.
4. Allows teachers to create an exciting way to educate students
Gone are the days when the only tools for teaching are limited to books, a blackboard or
whiteboard, and a chalk or markers. With technology integrated to education, teachers can now
incorporate images, videos and other graphics when delivering lessons. Specific websites, apps
and programs will also enable teachers to vary how they provide instructions. This creates an
exciting learning environment and promotes interest in education in general.
Other tools available for teachers include Smart Boards (interactive whiteboards), email Skype,
and PowerPoint.
5. Encourages development of new teaching methods
Rather than spend an hour or so talking while the students listen, or have them read an entire
chapter in silence, teachers and professors now have the option to use advanced teaching
methods, such as podcasts, blogs and social media. When working with a particular group or
one-on-one, teachers can take advantage of web conferencing technologie.
More Related Content
More from arihantmobilepoint15
Darwinian evolution, aka Darwinism, was merged with population g.pdf
Darwinian evolution, aka \"Darwinism\", was merged with population genetics in the early 1900s
to produce what is now commonly referred to as:
a. Neo-Lamarkianism
b. orthogenesis
c. mutationism
d. the modern synthesis
Solution
Ans:
A theory of the late 1800s and early 1900s, based on Lamarckism, that adaptive characteristics
acquired by an organism during its lifetime could be inherited by its offspring.
Ans: option a. Neo-Lamarkianism.
Determine the theoretical probability of flipping a TAIL on a coin. .pdf
Determine the theoretical probability of flipping a TAIL on a coin. Write this probability as a
fraction, decimal, AND percent,
Solution
solution-
when a coin is tossed total outcomes =2 (head or tail)
desired outcome = 1 (tail)
hence
probability = desired outcome/ total no. of outcome = 1/2 =0.5 =50%.
Construct a java method. This method chooses the number of sti.pdf
Construct a java method.
* This method chooses the number of sticks to pick up based on the
* sticksRemaining and actionRanking parameters.
*
* Algorithm: If there are less than Config.MAX_ACTION sticks remaining
* then the chooser must pick the minimum number of sticks (Config.MIN_ACTION).
* For Config.MAX_ACTION or more sticks remaining then pick based on the
* actionRanking parameter.
*
* The actionRanking array has one element for each possible action. The 0
* index corresponds to Config.MIN_ACTION and the highest index corresponds
* to Config.MAX_ACTION. For example, if Config.MIN_ACTION is 1 and
* Config.MAX_ACTION is 3, an action can be to pick up 1, 2 or 3 sticks.
* actionRanking[0] corresponds to 1, actionRanking[1] corresponds to 2, etc.
* The higher the element for an action in comparison to other elements,
* the more likely the action should be chosen.
*
* First calculate the total number of possibilities by summing all the
* element values. Then choose a particular action based on the relative
* frequency of the various rankings.
* For example, if Config.MIN_ACTION is 1 and Config.MAX_ACTION is 3:
* If the action rankings are {9,90,1}, the total is 100. Since
* actionRanking[0] is 9, then an action of picking up 1 should be chosen
* about 9/100 times. 2 should be chosen about 90/100 times and 1 should
* be chosen about 1/100 times. Use Config.RNG.nextInt(?) method to
* generate appropriate random numbers.
*
* @param sticksRemaining
* The number of sticks remaining to be picked up.
* @param actionRanking
* The counts of each action to take. The 0 index corresponds to
* Config.MIN_ACTION and the highest index corresponds to
* Config.MAX_ACTION.
* @return The number of sticks to pick up. 0 is returned for the following
* conditions: actionRanking is null, actionRanking has a length of
* 0, or sticksRemaining is <= 0.
Solution
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
String userName = \"\";
String intialStringError = \"\";
int intialSticks = 0;
String prompt = \"How many sticks are there on the table initially (10-100)? \";
//Max number of tries
int[] numSticksArray = new int[100];
boolean intialBooleanError = false;
boolean userChoiceDone = false;
int userChoice = 0;
String userError = \"\";
String friendName = \"\";
int userStickNum = 0;
String userStickError = \"\";
String friendStickError = \"\";
boolean friendTurnOver = true;
boolean userTurnOver = true;
int z = 0;
System.out.print(\"\ What is your name? \");
userName = input.nextLine();
System.out.println(\"Hello \" + userName.trim() + \".\");
intialSticks = promptUserForNumber(input, prompt, Config.MIN_STICKS,
Config.MAX_STICKS);
System.out.println(\"\ Would you like to:\");
System.out.println(\" 1) Play against a friend\");
System.out.println(\" 2) Play against computer (basic)\");
System.out.println(\" 3) Play against computer with AI\");
do{
System.out.print(\"Which do you choose (1,2,3)? \");
if(input.hasNextInt())
{
userChoice = inp.
Complete the sentences with the correct terms. Solution1. Phot.pdf
Complete the sentences with the correct terms.
Solution
1. Photosynthesis uses light energy to produce ATP, NADPH and O2.
2. Chlorophyll captures the light energy for photosynthesis.
3. ATP and NADPH drive the calvin cycle
4. Calvin cycle performs carbon fixation during photosynthesis.
5. Water is converted into oxygen to release electrons in the light reactions..
BIOCHEMISTRY 1. explain carbohydrate nonmenclature (aldose vs. ket.pdf
BIOCHEMISTRY
1. explain carbohydrate nonmenclature (aldose vs. ketose and number of carbons, numbering of
carbons), including characterizations of chirality (optical isomers, enantiomers, diastereomers,
and epimers)
2.identify common and important disaccarides
3.distinguish all structural and biochemical similarities and differences between starch,
cellulose, and glycogen
4.what are fat soluble vitamins and what are their roles in the body
Solution
1. The monosaccharides are the simple sugar molecules with general formula (CH2O) n. They
are mainly composed of Carbon, Hydrogen and Oxygen. Monosaccharides possess functional
groups such as aldehydes and ketones in their structure. Basing on the functional group present
they are named as aldose - that contains an aldehyde group, ketose - that contains a ketone group.
They also contain many hydroxyl groups. Hence, monosaccharides are called as polyhydroxy
aldehydes or polyhydroxy ketones. A Hexose having ketone group is known as Ketohexose.
Fructose is an example of ketohexose. . Hexose with an aldehyde group is called as Aldohexose.
Example of an Aldohexose is Glucose.
A Triose is a monosaccharide having three carbon atoms in its skeleton. Glyceraldehyde is an
example of a triose.A Pentose is a monosaccharide having five carbon atoms in its structure.
Ribose is an example of a pentose. Both triose and pentose are monosaccharides differing in
number of carbon atoms in their skeleton.
The molecules having a Carbon atom bonded to four different functional groups are called
‘chiral molecules’. The center carbon atom is called chiral carbon. Any molecule having a chiral
carbon exists in a pair of enantiomers, which are nonsuperimposable mirror images. Stereo
isomers are the molecules having same molecular formula and same bonding but differ in spatial
arrangement of atoms. They are mirror images. They rotate the plane polarized light either to
clockwise or to counter clockwise. If they rotate the plane polarized light to clockwise, they are
called as ‘dextro rotatory’ (D forms) and are indicated by (+) sign. If they rotate the plane
polarized light to counter clockwise, they are called as ‘levo rotatory’ (L forms) and are indicated
by (-) sign.
Diastereomers can be defined as a pair of stereo isomers that are not enantiomers. This indicates
that the isomers are not mirror images and they totally differ from each other. Enantiomers
though nonsuperimposable mirror images they have same physical and chemical properties, they
differ only in rotation of plane polarized light. Diastereomers have different physical and
chemical properties.
2. The disaccharides are composed of two monosaccharide units. Maltose, Lactose and Sucrose
are the examples of disaccharides. These are referred by their common names like, Malt sugar,
Milk sugar and Table sugar. Galactose is a hexose molecule. It is one of the components of
disaccharide Lactose or milk sugar. It is found in the milk of mammals. -D - N -
acetylgalactosami.
Can a degree 3 polynomial intersect a degree 4 polynomial in exactly .pdf
Can a degree 3 polynomial intersect a degree 4 polynomial in exactly five points? Explain.
Solution
Let, f(x) be degree 3 polynomial
ANd g(x) be degree 4 polynoimal
So points of intersection are given by roots of the polynomial
h(x)=g(x)-f(x)
But, h(x) is degree 4 polynoimal and hence has atmost 4 roots
So there can be atmost 4 points of intersection.
All chordates have while all vertebrates have homeothermya notochor.pdf
All chordates have while all vertebrates have homeothermy/a notochord sometime during
development. a backbone/live birth and mammary glands in the females. a notochord sometime
during their development/a backbone and bilateral symmetry. a backbone/fur or hair. Which of
the following is true of the bonobo? the males are highly dominant, and the females only mate
with the most dominant male. they are more closely related to the gibbons than to any other
primate. they are an Old World monkey that lives in central African savannahs. all of the above
are true. none of the above are true. The term \"hominoid\" refers to monkeys and apes. apes
and humans. tarsiers and lemurs. prosimians and monkeys.
Solution
QUESTION 15: The term hominoid refers to
Ans- Apes and monkeys.
A member of the biological superfamily Hominoidea, including all modern great apes and
humans and a number of their extinct ancestors and relatives.
QUESTION 13: All chordates have -----while all vetebrates have -----
Ans: C--a notochord something during their development/a backbone and bilateral symmetry
Vertebrates are characterized by the presence of a vertebra or backbone skeletal bones that form
an endoskeleton a bilaterally symmetrical structure.
The notochord is replaced or surrounded by the backbone in the organism\'s adult
stage,Chordates also have pharyngeal slits.
Chordates also have a dorsal nerve cord that runs down the length of the organism.
QUESTION 14: which of the following is true of the bonobo
ANS : None of the above are true.
6. What factor describes the overall thermal performance of a buildin.pdf
6. What factor describes the overall thermal performance of a building assembly?
Solution
Solar energy ( temperature) is the factor that describes overall thermal performance of building
assembly.
Because solar energy is stored in the the form of thermal energy in the building assembly
And this energy is responsible for overall thermal performance of building assembly.
8) IntheSpapcelabLifeSciencePayload,14maleratsweresenttospace.Uponth.pdf
8) IntheSpapcelabLifeSciencePayload,14maleratsweresenttospace.Upontheirrerurn,thered
bloodcellmass(inmilliliters)oftheratswasdetermined.controlgroupof14maleratswasheld
underthesameconditionsasthespacerats,andtheirredbloodcellmasswasalsodetermined
whenthespaceratswasreturned.Theproject,ledbyDr.PaulX.Callahan,resultedinthedatalisted
inthetablebelow.Doestheevidencesupporttheclaimthattheflightanimalshavedifferentredblood
cellmassfromofthecontrolanimal?
Flight:
Control:
9.79 7.54
8.55 9.14
8.59
8.64
7.43
7.21
6.87
7.89
6.85
7.00
8.80
9.30
8.03
6.39
8.65
6.99
8.40
9.66
7.62
7.44
8.70
7.33
8.58
9.88
9.94
7.14
b)Use95%confidenceintervaltoconstructconfidenceintrevaltoestimatethedifferencebetween
thetwopopulationmeans.doestheconfidenceintervalsupporttheclaim?Explain.
8.59
8.64
7.43
7.21
6.87
7.89
6.85
7.00
8.80
9.30
8.03
6.39
Solution.
After reading about the history of welfare in the USA, describe in y.pdf
After reading about the history of welfare in the USA, describe in your own words how our
current welfare system came to be. What are your thoughts about Sweden\'s welfare system?
How would creating a similar system in the USA impact the field of human services? Why does
the USA not have a welfare system similar to Sweden?
Solution
The US has the largest and most technologically powerful economy in the world, with a per
capita GDP of $49,800. In this market-oriented economy, private individuals and business firms
make most of the decisions, and the federal and state governments buy needed goods and
services predominantly in the private marketplace. US business firms enjoy greater flexibility
than their counterparts in Western Europe and Japan in decisions to expand capital plant, to lay
off surplus workers, and to develop new products. At the same time, they face higher barriers to
enter their rivals\' home markets than foreign firms face entering US markets. US firms are at or
near the forefront in technological advances, especially in computers and in medical, aerospace,
and military equipment; their advantage has narrowed since the end of World War II. The onrush
of technology largely explains the gradual development of a \"two-tier labor market\" in which
those at the bottom lack the education and the professional/technical skills of those at the top
and, more and more, fail to get comparable pay raises, health insurance coverage, and other
benefits. Since 1975, practically all the gains in household income have gone to the top 20% of
households. Since 1996, dividends and capital gains have grown faster than wages or any other
category of after-tax income. Imported oil accounts for nearly 55% of US consumption. Crude
oil prices doubled between 2001 and 2006, the year home prices peaked; higher gasoline prices
ate into consumers\' budgets and many individuals fell behind in their mortgage payments. Oil
prices climbed another 50% between 2006 and 2008, and bank foreclosures more than doubled
in the same period. Besides dampening the housing market, soaring oil prices caused a drop in
the value of the dollar and a deterioration in the US merchandise trade deficit, which peaked at
$840 billion in 2008. The sub-prime mortgage crisis, falling home prices, investment bank
failures, tight credit, and the global economic downturn pushed the United States into a recession
by mid-2008. GDP contracted until the third quarter of 2009, making this the deepest and longest
downturn since the Great Depression. To help stabilize financial markets, in October 2008 the
US Congress established a $700 billion Troubled Asset Relief Program (TARP). The
government used some of these funds to purchase equity in US banks and industrial
corporations, much of which had been returned to the government by early 2011. In January
2009 the US Congress passed and President Barack OBAMA signed a bill providing an
additional $787 billion fiscal stimulus to be used over 10 ye.
You are examining a copolymer for its potential as a material for .pdf
You are examining a copolymer for it\'s potential as a material for a vascular graft. you are trying
to determine whether you want a high or low degree of crystallinity in the material. what type of
structures for copolymers have a higher probability for crystallization?
Solution
Answer:
Copolymers are formed when two or more different types of monoers polymerize in a process
called copolymerization.
A block polymer is formed by the copolymerization of different copolymerized monomers. The
first component is styrene followed by methyl methacrylate which forms at the end of
polystyrene chain. Alternating polymers have regular repeating units of two different monomeric
units.
Block and alternating polymers can form long range repeated, ordered structures and thus have a
higher affinity for crystallization..
write a pic18 divide 2 input variables. num and denom..pdf
write a pic18 divide 2 input variables. num and denom.
Solution
[n, d] = numden(sym(four/5))
n =
4
d =
5
Numerators and Denominators of Symbolic Expressions
locate the numerator and denominator of the symbolic expression.
syms x y
[n,d] = numden(x/y + y/x)
n =
x^2 + y^2
d =
x*y
Numerators and Denominators of Matrix elements
locate the numerator and denominator of every element of a symbolic matrix.
syms a b
[n,d] = numden([a/b, 1/b; 1/a, 1/(a*b)])
n =
[ a, 1]
[ 1, 1]
d =
[ b, b]
[ a, a*b]
associated Examples
Extract Numerators and Denominators of Rational Expressions
enter Arguments
fall apart all
A — enter
symbolic range symbolic feature symbolic matrix
input, exact as a symbolic quantity, expression, feature, vector, or matrix..
Why would some toxicology studies focus on the population level and .pdf
Why would some toxicology studies focus on the population level and others focus at the
community or ecosystem levels?
Solution
The study of toxicology under ecological parameters like population level and others, called as
Ecological Toxicology. Under this study, the focus is on environmental contaminants
consequences. They affect every individual of community and its structure and population
dynamics. The scientists and analyst study the physiological, reproductive and behavioral effects
occur through the consequences. Ecological Toxicology helps in finding the lethal, sub lethal,
chronic, and genetic effects. These studies provide a base for making an ecosystem preventive
and secure..
why are the tropics so diverseplease expaint this queation in det.pdf
why are the tropics so diverse?
please expaint this queation in details.
Solution
Answer:
Added biodiversity in the tropics as compared to the higher latitudes probably stems from the
flux of photons in the tropics, but our earth is a dynamic system and thus its far more
complicated than that.
Mutations can occur randomly, evolutionarily the strongest contributor is error during DNA
replication. This can be argued to be a function of temperature and if so, then temperature plays a
small role in DNA copying.
Another contributor would be that of the flux of photons. Photons have the ability to cause
mutations and there is a noticeable difference in photon flux between the higher latitudes and the
tropics.
The tropics are enormous, spreading across the waistline of the globe. Increasing size provides
ample opportunity for geographic separation for groups within a species. In conjunction with this
is the fact that this broad band girdling the planet has, overall, fairly constant temperature and
humidity.
The tropics also exhibit relatively stable climatic conditions which will result in steady food
supplies for animals as animals could specialize on 1 to 5 food sources and they would be
available more or less year round.
The richness of tropical rainforests in plant life is perhaps due to high levels of solar energy. The
sun lies overhead during the entire year, there is a great deal of light available to support the
plants in the lower strata, more than twice as much as is available to a temperate forest. And
since plants in the tropics don’t suffer from (low) temperature stress, they can devote their
energies to growth and reproduction at even very low light intensities. Light intensities in
tropical forests are also very patchy and heterogeneous. Thus, plants living under the tall canopy
can specialize in exploiting particular light regimes, many of which are not available in
temperate forests. And with plant diversity comes animal diversity, since all of these plants
provide food and shelter for animals.
High mean annual temperature, primary productivity, and evapotranspiration rates are probably
all involved also, but we do not know whether or not the higher energy levels found in
rainforests are causal factors in the generation of biodiversity
The presence of pathogens is a contributing factor but it complex because their related to higher
temperatures but they will cause speciations as organism will need to develop the ability to
defend against them
Storms and high winds are common in tropical areas, and frequently lead to considerable damage
and the formation of fairly large gaps in forests. When the gap in the forest is small (as when one
or a few trees fall), pioneer species will normally enter the gap and flourish, eventually being
replaced by climax tree species.
Tropical regions are large, as well as topographically complex. As mentioned above, the
complexity of the rainforest environment allows for considerable specialization of org.
Which organization coordinates the assignment of Internet domain nam.pdf
Which organization coordinates the assignment of Internet domain names, IP addresses, protocol
parameters, and port numbers?
A. The FCC
B. The IEEE
C. The IETF
D. The ICANN
Solution
Answer D is the correct answer. The Internet Corporation for Assigned Names and Numbers
(ICANN) is a technical coordination body for the Internet. ICANN coordinates the assignment of
Internet domain names, IP addresses, protocol parameters, and port numbers. The FCC (Federal
Communications Commission) is a regulatory agency of the U.S. government, so answer A is
incorrect. The IEEE is another standards body that develops standards for computer networking
and many other telecommunications areas, so answer B is incorrect. The Internet Engineering
Task Force (IETF) is a large, open international community of network engineers, researchers,
and vendors that provide technical guidance for the Internet community, so answer C is also
incorrect..
Which of the following statements is (are) true I For cash flow, .pdf
Which of the following statements is (are) true: I : For cash flow, prediction of inflows and
outflows of money is not important. II: Cash flow is about having a good idea when money
comes in and when it goes out.
Statement I is false; Statement II is true
Statement I is true; Statement II is false
Both statements are false
Both statements are true
Solution
Statement I is false; Statement II is true
Prediction of inflows and outflows are important in cash flows.
Which featuresaspects of early mammalhumandevelopment make PGD pos.pdf
Which features/aspects of early mammal/humandevelopment make PGD possible?
Find five features.
Solution
1.Possibility of human embroys to develop in IVF techniques.
2.Measuring cytoplasmic enzyme activity in individual embryonic cells can be done in early
mammals/humans.
3.The ability to extract DNA and genetically characterize single sperm and diploid cells through
modern techniques.
4.Identifcation of autosomal recessive disorders in human development
5.Fertile couples, or infertile couples who are following assisted conception treatment (such as
IVF), might opt for some form of prenatal diagnosis of their condition once a pregnancy is
established, either by AMNIOCENTESIS or CHORIONIC VILLUS SAMPLING (CVS) with
the option of terminating an affected pregnancy..
What are stress and stressors Identify potential sources and conseq.pdf
What are stress and stressors? Identify potential sources and consequences of stress, and describe
alternative stress management strategies.
Solution
There are external or internal (to individual) sources of stress, among external sources we have:
Major life changes, Work or school, Relationship difficulties, Financial problems, Being too
busy and Children and family. Additionally, we have internal ones as Chronic worry, Pessimism,
Negative self-talk, Unrealistic expectations excess of Perfectionism, All-or-nothing attitude and
Rigid thinking, lack of flexibility.What is stress?
Stress is a normal response of human body, which under threat contexts releases chemicals that
give to the person additional strength and energy to increase his/her capability to protect himself.
The core issue is that this situation should be punctual but never a constant in a healthy person, it
should be an extraordinary response, because if it would be frequent, it would be too demanding
to the body, and here is the problem, contemporary average person is exposed to several frequent
stress situations, and his/her body does not have time to recover itself.
What are stressors?
They are situations, things or persons whom have the capability to activate this extraordinary
response of the body, because they demand more attention and energy from stressed individual.
Identify potential sources of stress.
There are external or internal (to individual) sources of stress, among externals we have: Major
life changes, Work or school, Relationship difficulties, Financial problems, Being too busy and
Children and family. Additionally, we have internal ones as Common internal causes of stress,
Chronic worry, Pessimism, Negative self-talk, Unrealistic expectations/Perfectionism, All-or-
nothing attitudeandRigid thinking, lack of flexibility
Identify consequences of stress.
Memory problems, seeing only the negative, irritability or short temper, depression or general
unhappiness, sense of loneliness and isolation, chest pain, rapid heartbeat, agitation, inability to
relax, poor judgment, using alcohol, cigarettes, or drugs to relax, anxious or racing thoughts,
constant worrying, nervous habits, eating more or less, nausea, dizziness, loss of sex appetite,
moodiness, procrastinating or neglecting responsibilities, frequent colds, sleeping too much or
too little, feeling overwhelmed, aches and pains, diarrhea or constipation, isolating yourself from
others.
Describe alternative stress management strategies.
Practicing physical activity, to recover nervous system balance.
Feeding yourself well and healthy, to gain energy to the body and mind.
Sleeping enough, to rest and keep clear mind.
Activating social life, meeting friends, visiting family, spaces to other kind of experiences.
Scheduling relaxation time, to connect with yourself, praying, meditation, anything you prefer..
void ReplaceCharInBuffer(bufferADT buffer, char oldch, char newch);.pdf
void ReplaceCharInBuffer(bufferADT buffer, char oldch, char newch);
When this function is called, it should start searching from the current cursor position, looking
for the next occurrence of the character oldch in the rest of the buffer.
If it finds it, simply replace oldch with newch. Search should leave the cursor after the last
character replaced in the buffer.
If oldch does not occur between the cursor and the end of the buffer, then there is nothing to
replace and thus search should leave the cursor unchanged (in the original place)
int SearchStrBuffer(bufferADT buffer, char* str);
When this function is called, it should start searching from the current cursor position, looking
for the next occurrence of the string str in the rest of the buffer.
If it finds it, search should leave the cursor after the found string and return the value TRUE or 1
If the string str does not occur between the cursor and the end of the buffer, then search should
leave the cursor unchanged and return FALSE or 0
First, you need to add the above prototypes into buffer.h.
Second, you need to implement them in listbuf.c
Third, you need to update editor.c so that you can call those functions. So include the following
in editor.c:
o If user enters: Rxy, your editor.c should call ReplaceCharInBuffer (buffer, \'x\', \'y\') to replace
all the occurrences of character \'x\' with character \'y\' after the cursor.
o If user enters: Sxyz, your editor.c should call SearchStrBuffer (buffer, \"xyz\") to search string
\"xyz\" in the buffer after the cursor.
Solution
/*
* File: editor.c
* --------------
* This program implements a simple character editor, which
* is used to test the buffer abstraction. The editor reads
* and executes simple commands entered by the user.
*/
#include
#include
#include \"genlib.h\"
#include \"buffer.h\"
#include \"simpio.h\"
#include \"string.h\"
/* Private function prototypes */
static void ExecuteCommand(bufferADT buffer, string line);
static void HelpCommand(void);
/* Main program */
main()
{
bufferADT buffer;
buffer = NewBuffer();
while (TRUE) {
printf(\"*\");
ExecuteCommand(buffer, GetLine());
DisplayBuffer(buffer);
}
FreeBuffer(buffer);
}
/*
* Function: ExecuteCommand
* Usage: ExecuteCommand(buffer, line);
* ------------------------------------
* This function parses the user command in the string line
* and executes it on the buffer.
*/
static void ExecuteCommand(bufferADT buffer, string line)
{
int i;
switch (toupper(line[0])) {
case \'R\':
if(strlen(line) >= 3) {
ReplaceCharInBuffer(buffer, line[1], line[2]);
} else {
printf(\"Illegal command\ \");
}
break;
case \'S\':
SearchStrBuffer(buffer, &line[1]);
break;
case \'I\': for (i = 1; line[i] != \'\\0\'; i++) {
InsertCharacter(buffer, line[i]);
}
break;
case \'D\': DeleteCharacter(buffer); break;
case \'F\': MoveCursorForward(buffer); break;
case \'B\': MoveCursorBackward(buffer); break;
case \'J\': MoveCursorToStart(buffer); break;
case \'E\': MoveCursorToEnd(buffer); break;
case \'H\':.
What are the Pros and Cons on how Technology has changed teaching te.pdf
What are the Pros and Cons on how Technology has changed teaching techniques for teachers?
Solution
List of the Advantages of Technology in Education
1. Promotes independent learning in students
The internet is a treasure trove of information. Practically anything you need to know can be
found online. Although there is a question of the credibility of the source and the data provided,
it can still serve as an educational resource for students. Even without assistance from parents
and teachers, students can just look up their lessons online.
Unlike regular textbooks, electronic books and web-based content are updated in real time,
feeding students with the most current information they can get their hands on, helping them
become more knowledgeable even outside the classroom setting.
2. Prepares students for the future
From the way technological advancements are going, it is obvious that the future will be digital
and technology-focused. If students are well-versed on using technology to collaborate and
communicate as early as now, they will not have trouble fitting in, competing and finding jobs in
the future. Being familiar with using at least one form of technology at an early age will help
them become comfortable using it, and eventually develop other skills necessary to handle other
innovative devices and processes.
3. Has the potential to lower textbook and tuition prices
With resources more accessible and in great abundance, the cost of textbooks is likely to
decrease. It is also possible that students may no longer need to buy a textbook, if it is converted
into digital format. The actual books can stay in the classroom, while the content is saved on a
student’s computer.
Tuition will also decrease when learning is done online, rather than inside the classroom. By
taking out the factors that contribute to a higher tuition fee, such as utility bills and transportation
allowance of teachers, the overall cost of education will be lower.
4. Allows teachers to create an exciting way to educate students
Gone are the days when the only tools for teaching are limited to books, a blackboard or
whiteboard, and a chalk or markers. With technology integrated to education, teachers can now
incorporate images, videos and other graphics when delivering lessons. Specific websites, apps
and programs will also enable teachers to vary how they provide instructions. This creates an
exciting learning environment and promotes interest in education in general.
Other tools available for teachers include Smart Boards (interactive whiteboards), email Skype,
and PowerPoint.
5. Encourages development of new teaching methods
Rather than spend an hour or so talking while the students listen, or have them read an entire
chapter in silence, teachers and professors now have the option to use advanced teaching
methods, such as podcasts, blogs and social media. When working with a particular group or
one-on-one, teachers can take advantage of web conferencing technologie.
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