Which of the following compounds cannot be used as an electron donor.pdf
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Which of the following compounds cannot be used as an electron donor to support microbial energetics? (a) Fe2+ (b) H2S (c) CO2 (d) H2 Surface ocean waters undergoing high rates of photosynthesis also exhibit (a) daily increases and nightly decreases in pH. (b) daily decreases and nightly increases in pH. (c) constant pH values from day to night. (d) typically lower pH value than deep ocean water. What happened on Earth in response to the Great Oxygen Event (circle all that apply) (a) Iron oxides precipitated from solution (b) Superoxide dismutase was created (c) Anaerobes became extinct (d) Mitochondria came into existence. Iron oxidizing bacteria refer to those organisms that (a) use iron as an electron donor. (b) use iron as an electron acceptor. (c) consume iron and transform it into intracellular magnetite. (d) increase the sedimentation rate of iron particles in the open ocean. Solution chemoautotrophs are obtain thier energy by oxidation of electron donors in the environment. they uses inorganic energy sources such as ferrous iron ion, hydrogen sulfide, H2. they can not use co2 as electron donor iron oxides precipitated from solution because in the presence of excessive oxygen iron gets oxidizes and forms ferrous oxides. iron oxidizing bacteria is one of the type of chemical autotrophs which uses iron as electron donor for thier enery source generation..
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I need help with ALL of the following bacteria:
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I need to know about EACH BACTERIA :
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**ALL general information **
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Solution
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Movement- with the help of flagellum.
Reproduction: By longitudinal binary fission.
Who is affected- the disease caused by trypanosoma is known as sleeping sickness. The parasites
are transmitted to humans by tsetse fly.
How they live- eating habits the blood, lymph and the intercellular spaces of different tissues and
organs of man Hogs,goats, cattle and sheep are the potential Reservoir hosts.
Class mastigophora and genus trypanosoma.
2. Radiolaria: also called radiozoa are protozoans
Movement: amoeboid movement
Reproduction: the reproduce asexually and probably sexually also Asexual fission, binary fission
and Multiple Fission and budding.
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4. Paramoecium: it belongs to the class oligohymenophorea and genus paramoecium it is
commonly studied as a representative of the ciliate group there are widespread in freshwater
brackish and Marine environments they prepare themselves by whiplash moments of their cilia
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5. Vorticella: it belongs to the class oligihymenophorea and genus vorticella. It is a genus of
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a.
b.
c.
d.EventAssetsLiabilitiesOwners equityCash+Accounts receivable+Equipment=Accounts
payable+John capital-John withdrawl+Revenue-Salaries expense-Telephone bill-Rent expense-
Supplies expenseOct 25 25,000 25,000Oct 27 -1,200 1,200Oct 28
800 800Oct 29 -400 -400Total 23,400
- 2,000 400 25,000Nov 1
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250Nov 10 80 -80Nov 15 -50 50Nov
17 -120 120Nov 20 2,500 2,500Nov 25 1,300
1,300Nov 28 650 650Nov 30 -550
550Total 26,910 170 3,300 2,350
25,000 120 4,950 550 50
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states, the prevalence is more in case of Hispanic Americans that that of the White Americans or
black population. Also, African Americans have higher incidence than the white Americans.
b). African Americans are at higher risk of developing heart diseases than any other population,
about 3/4th of the population develop high blood pressure after 40 years of age. Their health
access is very less and do not visit a physician for regular checkup. Means they are less likely to
take any preventive medicines, which increases the risk of developing high blood pressure and
lethal heart problems.
c). As per the health statistics, Asian Americans are less prone to diabetes and hypertension.
d). Pacific Islanders are at higher risk of developing type 1 diabetes..
Due to your interference with organisms on the planet, one species o.pdf
Due to your interference with organisms on the planet, one species of flying insectivorous
organism that formerly lived near Lake Agassiz on Wallace have moved to a location just south
of Lake Lyell. Unfortunately, there is already a different species of flying insectivorous organism
very similar to the first organism living near Lake Lyell. Describe in detail what things (multiple
things)might happen as these two species interact. and what methods they can adopt to avoid
extinction with example.
Solution
The migration of flying insectivorous organism from Lake Agassiz on Wallace to Lake Lyell.
This leads to a competition between two organisms for their sustainability. Interspecific
competition could be observed between these two species. The interspecific competition if it is
drastic might lead to complete change in the population size of unfitted organism through natural
selection. The species which has been gets suppressed due to over - aggressive species gets
completely excluded or the unfitted species gets change itself its natural characteristics if it is
competent. The adaptations such as flexibility of the newer species to change itself to newer
climatic conditions, acclimatization and learning helpful for the survival of a new species which
gets migrated to a newer habitat..
Complete the following chart, and then circle the layer that is found.pdf
Complete the following chart, and then circle the layer that is found beneath the skin. How do
the cells of stratum corneum and stratum basale differ? ____ State the specific location of
melanin observed in dark skin ____ Which is darker, the anterior forearm or the posterior
forearm ____ Explain why ____ What special qualities, due to the presence of fibers, does the
connective tissue of the dermis have? ___How is the structure of the thick skin of the palms of
the hands and soles of the feet properly suited for its function? ____
Solution
1. ANS:
A. Epidermis
Location: outermost layer of the skin
Tissues: Epithelial tissue
Characteristics: It is a protective waterproof barrier that also keeps pathogens at bay and
regulates body temperature
B. Dermis:
Location: Middle layer present in beneath the epidermis of the skin
Tissues: Connective tissue
Characteristics: It is a thick layer of fibrous and elastic tissue (made mostly of collagen, elastin,
and fibrillin) that gives the skin its flexibility and strength.
C. Hypo dermis:
Location: Deeper subcutaneous tissue layer of the skin
Tissues: Fat and connective tissue
Characteristics: It maintains the body temperature.
2. ANS:
Stratum corneum and stratum basale difference:
The cells of stratum basale are cuboidal to columnar and the stratum corneum cells are made
with keratin.
3. ANS:
In the location of stratum basale, melanin content specifically observed in dark (heavily
pigmented) skin.
4. ANS:
The dorsal side (posterior) of the forearm is the \"top\" side-- the side that usually faces upward
and is generally darker than anterioir side. It is mainly due to melanin and hair follicles.
5. ANS:
The special qualities of dermis connective tissue can contains with Collagenous fibers, elastic
fibers, and a gel-like substance.
6. ANS:
The sole of feet and the palms of hands are structured to perform day to day functions. The
hardness on the skin on these locations is due to the layers of epidermis that contain dead
keratinocytes are the Stratum corneum and stratum lucidum
Stratum lucidum: Thin, clear layer present in the thick skin of the palms and soles; no remaining
living cells.
Stratum corneum: Several layers of keratinized corneum; a collagenous matrix composed of the
products of dead cells. Keratin and the thickened plasma membrane protect the skin against
abrasion and penetration, and the glycolipid between its cells nearly waterproofs this layer..
1a. What kinds of deductions are prohibited as a matter of public po.pdf
1a. What kinds of deductions are prohibited as a matter of public policy? bribes, kickbacks, and
\"other\" illegal payments as nondeductibleT.
1b.Why might Congress deem it important to disallow deductions for expenditures against public
policy?
Solution
The IRC lists bribes, kickbacks, and \"other\" illegal payments as nondeductibleCongress didn\'t
want the tax benefits associated with deductions to benefit or subsidize wrongdoing of course,
this rationale doesn\'t really explain the prohibition against deducting political contributions
which is probably better explained by the potential perception that political efforts are being
subsidized by taxpayers..
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3. IQ tests are given to fifteen pairs of siblings. In each pair, one sibling has phenylketonuria
(PKU, a metabolism disorder); the other doesn\'t. Is there any evidence that, in general, the PKU
cases have higher or lower IQs from their siblings? Perform a nonparametric test with sufficient
power, and justify your choice of test
Solution.
A rectangular board is 9 by 17 units. A string is connected to the f.pdf
A rectangular board is 9 by 17 units. A string is connected to the foci and pulled taut by a pencil
in order to draw the ellipse. Find the length of the string
Solution
length of major axis = 2a = 17
a = 17/2 = 8.5
length of minor axis = 2b = 9
b = 4.5
foci c^2 = a^2 - b^2
c^2 = 8.5^2 - 4.5^2 = 52
c = 7.21
length of the string = two times foci = 2*7.21 = 14.42 units.
You have 20 marbles and 20 rocks. Place them into two boxes to incre.pdf
You have 20 marbles and 20 rocks. Place them into two boxes to increase chances of getting the
marbles. Boxes are mixed up. Marbles and rocks have to be seperated for best chance to win the
marbles.
Solution
SOl)
20 rocks in 1st box
20 marbles on 2nd box
Total boxes=2
Probability to choose 20 marbles box = 1/2.
Write a method named convertInfixToPostfix that accepts an Infix exp.pdf
Write a method named convertInfixToPostfix that accepts an Infix expression as a parameter and
converts it to its Postfix equivalent by implementing the algorithm given in Figure 6.10 of the
required text book. Note that the Infix expression does not need to be a fully parenthesized
expression.
Your method should have the following signature and should be included in a class called
ExpressionConversion.
public String convertInfixToPostfix(String infixExp) { /* your implementation here*/ }
Solution
import java.util.Scanner; //for user input
public class ExpressionConversion
{
public static void main(String[] args) //main function
{
String infixExp,postfixExp;
Scanner in = new Scanner(System.in);
System.out.println(\"Enter Infix Expression : \");
infixExp = in.next();
postfixExp = convertInfixToPostfix(infixExp);
System.out.println(\"Postfix Expression : \" + postfixExp);
}
public static String convertInfixToPostfix(String infixExp) //function to convert infix to
postfix
{
int len = infixExp.length();
Stack s = new Stack(len);
int i=0;
char op;
String postfixExp = \"\";
for(i=0; i < len; i++)
{
if(infixExp.charAt(i) == \'+\' || infixExp.charAt(i) == \'-\' || infixExp.charAt(i) == \'*\' ||
infixExp.charAt(i) == \'/\' || infixExp.charAt(i) == \'(\' || infixExp.charAt(i) == \')\')
{
switch(infixExp.charAt(i))
{
case \'(\' :
s.push(infixExp.charAt(i));
break;
case \')\' :
op = s.pop();
while(op != \'(\')
{
postfixExp = postfixExp + op;
op = s.pop();
}
break;
default:
while(preceed(s.peek()) >= preceed(infixExp.charAt(i)))
postfixExp = postfixExp + s.pop();
s.push(infixExp.charAt(i));
}
}
else
postfixExp = postfixExp + infixExp.charAt(i);
}
while(!s.isEmpty())
postfixExp = postfixExp + s.pop();
return postfixExp;
}
static int preceed(char st) //function to check the precedenceof operators
{
switch(st)
{
case \'*\' :
case \'/\' :
return 3;
case \'+\' :
case \'-\' :
return 2;
default :
return 1;
}
}
}
class Stack //creating stack to implement infix to postfix conversion
{
int maxSize;
char[] stackArray;
int top;
public Stack(int max)
{
maxSize = max;
stackArray = new char[maxSize];
top = -1;
}
public void push(char item)
{
stackArray[++top] = item;
}
public char pop()
{
return stackArray[top--];
}
public char peek()
{
if(!isEmpty())
return stackArray[top];
else
return 0;
}
public boolean isEmpty()
{
return (top == -1);
}
}.
X and Y are continuous random variables with joint p.d.f. f(x,y) = c.pdf
X and Y are continuous random variables with joint p.d.f. f(x,y) = c(1 + x + y)
A) find E(X + Y)
B) find Cov(X,Y)
I could use some helping finding the answer here. I managed to get one however my classmates
found a different answer
I forgot to mention but the steps would be extremelly helpful. Thanks
Solution.
What is meant by cultural emergent and how does this differ from oth.pdf
What is meant by cultural emergent and how does this differ from other approaches to culture?
Explain how culture can be both persistent and ever-changing.
Solution
Cultural emergent and how does this differ from other approaches to culture discussion of the
scope and limitations of current diagnostic practice criticisms from different quarters and the role
and relevance of culture in the diagnostic encounter precede the examination of advantages and
disadvantages of the approach the practical aspects include the acceptance of cultural
discordances as a component of an updated definition of mental disorder and the use of a
refurbished cultural formulation.
This is why the recognition of cultural diversity can help to ensure that ownership of
development and peace initiatives is vested in the populations concerned the message of
sustainable development is that the planet is essentially finite and that the resources humanity
hoped to discover in its environment must now be found within itself in its very diversity cultural
diversity invites us to think in terms of a plural humanity embodying a creative potential that
precludes any prescribed model of development.
The acknowledgement of cultural diversity and intercultural dialogue help to defuse the tensions
that can arise in multicultural societies when a majority and minorities confront each other over
recognition of their rights although outcome research is limited culturally responsive behavioral
health counseling results in greater counselor credibility.
An archaeological eye to an examination of human response to unpredictable environmental
conditions informed by an understanding of contemporary traditional peoples sustainable
Lifeways enhances our understanding of both the forces of conservatism and innovation which
may have been in play in major transitions in the past..
What are two main causes of recombination Errors in DNA replication.pdf
What are two main causes of recombination? Errors in DNA replication and damage to DNA
induced by chemicals or radiation Independent assortment of chromosomes and crossing over
between nonhomologous chromosomes during meiosis Independent assortment of chromosomes
and crossing over between homologous chromosomes during meiosis Fusion of male and female
gametes bearing different alleles and crossing over between homologous chromosomes during
mitosis Crossing over between sister chromatids during mitosis and crossing over between
homologous chromosomes during meiosis
Solution
The two main causes of recombination are:
3. Independent assortment of chromosomes and crossing over between homologous
chromosomes during meiosis
5. Crossing over between sister chromatids during mitosis and crossing over between
homologous chromosomes during meiosis.
Note: Mitotic recombination is primarily a result of DNA repair processes responding to
spontaneous or induced damages..
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