1- during which phase of growth or bacteria- most susceptible to antib (1).pdf
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1. during which phase of growth or bacteria, most susceptible to antibiotics? A. lag b.stationary c.decline d.log 2. which is usually not sure of Archaea? A. they are found as rods, spheres,or spirals b. They contain peptidoglycan as part of their cell walls. c. They contain rigid cell walls. d. They reproduce by binary fission. e. They are found a single cells. 3.Endotoxin A. consists of LPS B. May have different effects, depending on the specific bacterial source C. Determines bacterial shape. D. Is toxic due to the effects of peptide side chain. e. Determines bacterial shape,, may have different effects depending on the specific bacteria source, AND is toxic to the affects of the peptide side chains. 4. The capsule A. Maybe used for protection AND Maybe used to help the bacteria adhere to surfaces B. May be involved in energy production. C. maybe used for protection D. Maybe involved in movement e. May be used to help the bacteria to here to surfaces. 5. pathogen in potato salad at picnic in sun. assume 10 cells with 20 minute generation time what is the number of cells and population add time for hours?(state formula) A. lag b.stationary c.decline d.log 2. which is usually not sure of Archaea? A. they are found as rods, spheres,or spirals b. They contain peptidoglycan as part of their cell walls. c. They contain rigid cell walls. d. They reproduce by binary fission. e. They are found a single cells. 3.Endotoxin A. consists of LPS B. May have different effects, depending on the specific bacterial source C. Determines bacterial shape. D. Is toxic due to the effects of peptide side chain. e. Determines bacterial shape,, may have different effects depending on the specific bacteria source, AND is toxic to the affects of the peptide side chains. 4. The capsule A. Maybe used for protection AND Maybe used to help the bacteria adhere to surfaces B. May be involved in energy production. C. maybe used for protection D. Maybe involved in movement e. May be used to help the bacteria to here to surfaces. 5. pathogen in potato salad at picnic in sun. assume 10 cells with 20 minute generation time what is the number of cells and population add time for hours?(state formula).
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Recommended
What is not true about the membranes of prokaryotic organism a. The.pdf
The correlation coefficient of two input sequences is given by r = n sigma x_i y_i - sigma x_i
sigma y_i/Squareroot [n sigma x_i^2 - (sigma x_i)^2][n sigma y_i^2 - (sigma y_i)^2] Adapt
Example 4.11 to compute the correlation coefficient from a sequence of pairs of input values
from an input file.
Solution
#include
using namespace std;
//Class for standard deviation
class stdDev
{
private:
int max;
double value[100];
double mean;
public:
double CalMean()
{
double sum = 0;
for(int i = 0; i < max; i++)
sum += value[i];
return (sum / max);
}
double CalVariane()
{
mean = CalMean();
double temp = 0;
for(int i = 0; i < max; i++)
{
temp += (value[i] - mean) * (value[i] - mean) ;
}
return temp / max;
}
double CalSampleVar()
{
mean = CalMean(); //get mean
double temp = 0;
for(int i = 0; i < max; i++)
{
temp += (value[i] - mean) * (value[i] - mean) ; //apply formula
}
return temp / (max - 1); //returns sample variance
}
int SetValues(double *p, int count)
{
if(count > 100)
return -1;
max = count;
for(int i = 0; i < count; i++)
value[i] = p[i];
return 0;
}
double CalStdDev()//returns Standard deviation
{
return sqrt(CalVariane());
}
double SampleStdDev()//returns sample deviation
{
return sqrt(CalSampleVar());
}
};
class Calculate
{
private:
double XTerms[100];
double YTerms[100];
int max;
stdDev x; // Standard deviation for x
stdDev y;// Standard deviation for y
public:
//set x and y series values to class members
void SetValues(double *xval, double *yval, int count)
{
for(int i = 0; i < count; i++)
{
XTerms[i] = xval[i];
YTerms[i] = yval[i];
}
x.SetValues(xval, count);
y.SetValues(yval, count);
max = count;
}
double Calculate_Covariance()
{
double xmean = x.CalMean();//Get X meam
double ymean = y.CalMean();//get y mean
double total = 0;
for(int i = 0; i < max; i++)
{
total += (XTerms[i] - xmean) * (YTerms[i] - ymean);
}
return total / max;//return Covariance
}
double Calculate_Correlation()//Find correlation
{
double cov = Calculate_Covariance();
double correlation = cov / (x.CalStdDev() * y.CalStdDev());
return correlation;
}
};
int main()
{
Calculate calc; //create object of class
double xarr[] = { 0, 2, 4, 6, 8 }; // x series
double yarr[] = { 6, 13, 15, 16, 20 };// y series
calc.SetValues(xarr,yarr,sizeof(xarr) / sizeof(xarr[0]));//set series values
cout<<\"X series ={ 0, 2, 4, 6, 8 }\ Y series={ 6, 13, 15, 16, 20 }\ \";
cout<<\"Correlation \"<< calc.Calculate_Correlation();
}
=====================================================================
========
Output:
akshay@akshay-Inspiron-3537:~/Chegg$ g++ coeffici.cpp
akshay@akshay-Inspiron-3537:~/Chegg$ ./a.out
X series ={ 0, 2, 4, 6, 8 }
Y series={ 6, 13, 15, 16, 20 }
Correlation 0.952157.
1. Members of one species cannot successfully interbreed and produc.docx
1. Members of one species cannot successfully interbreed and produce fertile offspring with members of other species. This idea is known as
a. reproductive success.
b. punctuated evolution.
c. adaptive radiation.
d. the biological species concept.
e. geographic isolation.
2. The origin of new species, the extinction of species, and the evolution of major new features of living things are all changes that result from
a. macroevolution.
b. fitness.
c. speciation.
d. the biological species concept.
e. convergent evolution.
3. Which is a barrier that can contribute to reproductive isolation?
a. timing
b. behavior
c. habitat
d. incompatible reproductive structures
e. all of the above
4. Which of the following statements is false?
a. Horses and donkeys are separate species.
b. Two mules can mate and produce fertile offspring.
c. A horse and a donkey can mate and produce offspring.
d. Two donkeys can mate and produce fertile offspring.
e. Two horses can mate and produce fertile offspring.
5. The evolution of the penguin’s wing from a wing suited for flying to a “flipper-wing” used for swimming is an example of
a. refinement of existing adaptations.
b. reproductive isolation.
c. adaptation of existing structures to new functions.
d. inheritance of acquired characteristics.
e. the biological species concept.
6. Which of the following have been preserved as fossils?
a. dinosaur footprints
b. insects preserved in amber
c. petrified plant remains
d. animal bones
e. all of the above
7. The mass extinctions that included the dinosaurs took place during which period?
a. Cambrian (543–510 million years ago)
b. Devonian (409–363 million years ago)
c. Carboniferous (363–290 million years ago)
d. Jurassic (206–144 million years ago)
e. Cretaceous (144–65 million years ago)
8. The development of the complex, camera-like eye of a mammal is an example of
a. refinement of existing adaptations.
b. reproductive isolation.
c. adaptation of existing structures to new functions.
d. inheritance of acquired characteristics.
e. the biological species concept.
9. Which of the following statements is true?
a. Carbon-14 dating is useful for studying the age of early dinosaur fossils.
b. Carbon-14 has a half-life of 5,730 years.
c. Uranium-238 has a very short half-life.
d. Uranium-238 is present in all organisms.
e. Carbon-12 is not found in living plants.
10. Which of the following provides the best explanation for why Australia has so many organisms unique to that continent?
a. punctuated equilibrium
b. the biological species concept
c. convergent evolution
d. continental drift
e. cladistics
11. Scientists think that a meteor that fell in ____________________ may have led to the extinction of the dinosaurs.
a. Australia
b. the Yucatán peninsula
c. The Galápagos Islands
d. Pangaea
e. India
12. The great diversit.
Paleontologists have found fossils dating back 3.6 billion years. .docx
Paleontologists have found fossils dating back 3.6 billion years. These closely resemble
A.
small invertebrate animals.
B.
nothing alive today.
C.
fungi.
D.
today’s simplest plants.
E.
blue-green algae present today.
5 points
QUESTION 2
When taxonomists classify organisms using a phylogenetic approach, they are most concerned with
A.
outgroups.
B.
cladists.
C.
ingroups.
D.
ancestral traits.
E.
derived traits.
5 points
QUESTION 3
In bacteria, the cell wall is composed mainly of
A.
various polysaccharides.
B.
peptidoglycans.
C.
proteins.
D.
glycoproteins.
E.
lipids.
5 points
QUESTION 4
Which form of bacterial cells is rod shaped?
A.
cocci
B.
vibrios
C.
spirilla
D.
rhodius
E.
Bacilli
5 points
QUESTION 5
The endosymbiont hypothesis suggests that the mitochondria of eukaryotic cells are descended from captured
A.
cyanobacteria.
B.
eukaryotic algae.
C.
chemoautotrophic bacteria.
D.
archaebacteria.
E.
aerobic bacteria.
5 points
QUESTION 6
Eukaryotic cells are thought to have
A.
evolved before prokaryotic cells.
B.
appeared about 2.1 billion years ago.
C.
first appeared with tough cell walls.
D.
first appeared as parts of multicellular organisms.
E.
developed when mitochondria grew much larger in size that they had been previously.
5 points
QUESTION 7
What term is used to indicate a characteristic that is shared and inherited from a common ancestor?
A.
analogous trait
B.
homologous trait
C.
cladistic trait
D.
outgroups
E.
derived trait
5 points
QUESTION 8
Prions are composed of
A.
DNA, RNA, and protein.
B.
protein.
C.
DNA and protein.
D.
DNA.
E.
RNA.
5 points
QUESTION 9
Of the following, which kingdom contains the most diversity in terms of DNA sequences?
A.
All of these are approximately equivalently diverse.
B.
Protista
C.
Fungi
D.
Plantae
E.
Animalia
5 points
QUESTION 10
Atmospheric chemists think that Earth’s first atmosphere
A.
contained no oxygen atoms.
B.
consisted of carbon in the form of carbon dioxide.
C.
was very similar to today’s atmosphere.
D.
consisted of carbon in the form of carbon monoxide.
E.
contained nitrogen in the form of ammonia and nitrogen gas.
5 points
QUESTION 11
Rickettsias belong to which major group of bacteria?
A.
Archaea
B.
cyanobacteria
C.
spirochetes
D.
viruses
E.
Proteobacteria
5 points
QUESTION 12
The Cambrian Explosion provided a wealth of fossil remains for scientists to uncover. Many of the animals from this time period had tough skins or shells. This would
A.
make these animals more desirable to predators.
B.
be a disadvantage for these organisms and lead to their death and fossil formation.
C.
allow the animals to move into different environments easily.
D.
protect the animal from osmotic pressure.
E.
protect the animal from predators.
5 points
QUESTION 13
What is the mai.
Chapter 1 assessment cut and paste
This document provides an overview of key concepts in biology. It discusses how biology is the study of life and how all living things derive energy from the sun, are composed of chemicals, and show organization at the cellular level. It also addresses how reproduction ensures the ongoing existence of species and how organisms maintain homeostasis.
Biology homework help
The document discusses the history and importance of microbiology. It describes experiments conducted by Redi and Pasteur that helped disprove the theory of spontaneous generation by showing that microbes come from other living organisms, not from non-living matter alone. It also discusses how cell theory established that cells are the basic unit of structure and function in living things, and how Koch's postulates helped link specific microbes to diseases. Finally, it examines methods of microbial control like antibiotics and how they influenced human health.
1- During your semester abroad you are taking part in a field study in.pdf
1. During your semester abroad you are taking part in a field study in a tropical localtion.
Although the area is in the tropics you are afforded indoor plumbing and electricity during your
stay. However, because you are at risk to specific parasitic roundworms your instructor explains
how to stay safe from infection. Which of the following statements will help you avoid
infection?
Multiple Choice
a. Mosquito repellent should be worn during the day and mosquito netting should be used while
sleeping to protect you from Wuchereria bancrofti .
b. Mosquito repellent should be worn during the day and mosquito netting should be used while
sleeping to protect you from Necator americanus .
c. Shoes (no open-toed shoes or sandals) or boots should be worn to prevent infection by
Wuchereria bancrofti .
d. Shoes (no open-toed shoes or sandals) or boots should be worn to prevent infection by
Necator americanus .
2. Most cnidarians possess two distinct body forms: the polyp, which is _________blank, and the
medusa, which is _________blank.
Multiple Choice
a. sessile; motile.
b. asymmetric; radially symmetric.
c. poisonous; nonpoisonous.
d. diplobastic; triploblastic.
3. Insects - of the subphylum Hexapoda - are remarkable for how successful they have been and
for their diversity. Which of these are key traits that help the insects, in particular, be so
widespread, diverse, and in so many ecological roles? true or false
a. Most insects have wings. True or False
b. Most insects molt their hard exoskeleton. True or False
c. Insect mouthparts are specialized in many different forms. True or False
d. Insects are parasites so they benefit from the work and nutrition of other animals. True or
False
e. The diets of insects, overall, are extremely varied, so different insects can specialize in almost
any food source. True or False
4. Your lab group is presented with an unknown mollusk. Your task is to assign it to one of the
major taxonomic classes. Which characteristic would allow you to say definitively that it belongs
to the Class Cephalopoda?
Multiple Choice
a. Mantle.
b. Gills.
c. Nephridia.
d. A closed circulatory system.
5. Jellyfish sting through specialized cells on their tentacles. Which of these has the most similar
function to the sting of a jellyfish:
Multiple Choice
a. The sting of a bee is because it injects venom to defend itself when threatened.
b. The bite of a snake because it injects venom to immobilize prey to eat.
c. The thorn of a cactus makes it too pointy to chew up.
d. The irritating oils of poison ivy or poison oak that rub onto animals that come in contact with
it.
6. Segmentation in the annelid worms has facilitated locomotion and specialization of different
parts of these animals. Evaluate the following statements about segmentation in the annelids and
determine if they are true or false.
A. Excretion is accomplished by paired protonephridia with flame cells in every segment of the
body. True or False
B. If the organs in one segment fa.
2010 semester exam review
This document provides a review for a semester exam covering topics in biology. It begins by defining the three types of variables in an experiment - controlled, manipulated, and responding variables. Next, it lists the eight characteristics of living things and provides examples. It defines homeostasis and discusses the importance of following safety procedures. The document then reviews experimental design and provides examples of descriptive, comparative, and experimental labs. It continues reviewing topics including the classification system, microscopes, cells, and more.
Recommended
What is not true about the membranes of prokaryotic organism a. The.pdf
The correlation coefficient of two input sequences is given by r = n sigma x_i y_i - sigma x_i
sigma y_i/Squareroot [n sigma x_i^2 - (sigma x_i)^2][n sigma y_i^2 - (sigma y_i)^2] Adapt
Example 4.11 to compute the correlation coefficient from a sequence of pairs of input values
from an input file.
Solution
#include
using namespace std;
//Class for standard deviation
class stdDev
{
private:
int max;
double value[100];
double mean;
public:
double CalMean()
{
double sum = 0;
for(int i = 0; i < max; i++)
sum += value[i];
return (sum / max);
}
double CalVariane()
{
mean = CalMean();
double temp = 0;
for(int i = 0; i < max; i++)
{
temp += (value[i] - mean) * (value[i] - mean) ;
}
return temp / max;
}
double CalSampleVar()
{
mean = CalMean(); //get mean
double temp = 0;
for(int i = 0; i < max; i++)
{
temp += (value[i] - mean) * (value[i] - mean) ; //apply formula
}
return temp / (max - 1); //returns sample variance
}
int SetValues(double *p, int count)
{
if(count > 100)
return -1;
max = count;
for(int i = 0; i < count; i++)
value[i] = p[i];
return 0;
}
double CalStdDev()//returns Standard deviation
{
return sqrt(CalVariane());
}
double SampleStdDev()//returns sample deviation
{
return sqrt(CalSampleVar());
}
};
class Calculate
{
private:
double XTerms[100];
double YTerms[100];
int max;
stdDev x; // Standard deviation for x
stdDev y;// Standard deviation for y
public:
//set x and y series values to class members
void SetValues(double *xval, double *yval, int count)
{
for(int i = 0; i < count; i++)
{
XTerms[i] = xval[i];
YTerms[i] = yval[i];
}
x.SetValues(xval, count);
y.SetValues(yval, count);
max = count;
}
double Calculate_Covariance()
{
double xmean = x.CalMean();//Get X meam
double ymean = y.CalMean();//get y mean
double total = 0;
for(int i = 0; i < max; i++)
{
total += (XTerms[i] - xmean) * (YTerms[i] - ymean);
}
return total / max;//return Covariance
}
double Calculate_Correlation()//Find correlation
{
double cov = Calculate_Covariance();
double correlation = cov / (x.CalStdDev() * y.CalStdDev());
return correlation;
}
};
int main()
{
Calculate calc; //create object of class
double xarr[] = { 0, 2, 4, 6, 8 }; // x series
double yarr[] = { 6, 13, 15, 16, 20 };// y series
calc.SetValues(xarr,yarr,sizeof(xarr) / sizeof(xarr[0]));//set series values
cout<<\"X series ={ 0, 2, 4, 6, 8 }\ Y series={ 6, 13, 15, 16, 20 }\ \";
cout<<\"Correlation \"<< calc.Calculate_Correlation();
}
=====================================================================
========
Output:
akshay@akshay-Inspiron-3537:~/Chegg$ g++ coeffici.cpp
akshay@akshay-Inspiron-3537:~/Chegg$ ./a.out
X series ={ 0, 2, 4, 6, 8 }
Y series={ 6, 13, 15, 16, 20 }
Correlation 0.952157.
1. Members of one species cannot successfully interbreed and produc.docx
1. Members of one species cannot successfully interbreed and produce fertile offspring with members of other species. This idea is known as
a. reproductive success.
b. punctuated evolution.
c. adaptive radiation.
d. the biological species concept.
e. geographic isolation.
2. The origin of new species, the extinction of species, and the evolution of major new features of living things are all changes that result from
a. macroevolution.
b. fitness.
c. speciation.
d. the biological species concept.
e. convergent evolution.
3. Which is a barrier that can contribute to reproductive isolation?
a. timing
b. behavior
c. habitat
d. incompatible reproductive structures
e. all of the above
4. Which of the following statements is false?
a. Horses and donkeys are separate species.
b. Two mules can mate and produce fertile offspring.
c. A horse and a donkey can mate and produce offspring.
d. Two donkeys can mate and produce fertile offspring.
e. Two horses can mate and produce fertile offspring.
5. The evolution of the penguin’s wing from a wing suited for flying to a “flipper-wing” used for swimming is an example of
a. refinement of existing adaptations.
b. reproductive isolation.
c. adaptation of existing structures to new functions.
d. inheritance of acquired characteristics.
e. the biological species concept.
6. Which of the following have been preserved as fossils?
a. dinosaur footprints
b. insects preserved in amber
c. petrified plant remains
d. animal bones
e. all of the above
7. The mass extinctions that included the dinosaurs took place during which period?
a. Cambrian (543–510 million years ago)
b. Devonian (409–363 million years ago)
c. Carboniferous (363–290 million years ago)
d. Jurassic (206–144 million years ago)
e. Cretaceous (144–65 million years ago)
8. The development of the complex, camera-like eye of a mammal is an example of
a. refinement of existing adaptations.
b. reproductive isolation.
c. adaptation of existing structures to new functions.
d. inheritance of acquired characteristics.
e. the biological species concept.
9. Which of the following statements is true?
a. Carbon-14 dating is useful for studying the age of early dinosaur fossils.
b. Carbon-14 has a half-life of 5,730 years.
c. Uranium-238 has a very short half-life.
d. Uranium-238 is present in all organisms.
e. Carbon-12 is not found in living plants.
10. Which of the following provides the best explanation for why Australia has so many organisms unique to that continent?
a. punctuated equilibrium
b. the biological species concept
c. convergent evolution
d. continental drift
e. cladistics
11. Scientists think that a meteor that fell in ____________________ may have led to the extinction of the dinosaurs.
a. Australia
b. the Yucatán peninsula
c. The Galápagos Islands
d. Pangaea
e. India
12. The great diversit.
Paleontologists have found fossils dating back 3.6 billion years. .docx
Paleontologists have found fossils dating back 3.6 billion years. These closely resemble
A.
small invertebrate animals.
B.
nothing alive today.
C.
fungi.
D.
today’s simplest plants.
E.
blue-green algae present today.
5 points
QUESTION 2
When taxonomists classify organisms using a phylogenetic approach, they are most concerned with
A.
outgroups.
B.
cladists.
C.
ingroups.
D.
ancestral traits.
E.
derived traits.
5 points
QUESTION 3
In bacteria, the cell wall is composed mainly of
A.
various polysaccharides.
B.
peptidoglycans.
C.
proteins.
D.
glycoproteins.
E.
lipids.
5 points
QUESTION 4
Which form of bacterial cells is rod shaped?
A.
cocci
B.
vibrios
C.
spirilla
D.
rhodius
E.
Bacilli
5 points
QUESTION 5
The endosymbiont hypothesis suggests that the mitochondria of eukaryotic cells are descended from captured
A.
cyanobacteria.
B.
eukaryotic algae.
C.
chemoautotrophic bacteria.
D.
archaebacteria.
E.
aerobic bacteria.
5 points
QUESTION 6
Eukaryotic cells are thought to have
A.
evolved before prokaryotic cells.
B.
appeared about 2.1 billion years ago.
C.
first appeared with tough cell walls.
D.
first appeared as parts of multicellular organisms.
E.
developed when mitochondria grew much larger in size that they had been previously.
5 points
QUESTION 7
What term is used to indicate a characteristic that is shared and inherited from a common ancestor?
A.
analogous trait
B.
homologous trait
C.
cladistic trait
D.
outgroups
E.
derived trait
5 points
QUESTION 8
Prions are composed of
A.
DNA, RNA, and protein.
B.
protein.
C.
DNA and protein.
D.
DNA.
E.
RNA.
5 points
QUESTION 9
Of the following, which kingdom contains the most diversity in terms of DNA sequences?
A.
All of these are approximately equivalently diverse.
B.
Protista
C.
Fungi
D.
Plantae
E.
Animalia
5 points
QUESTION 10
Atmospheric chemists think that Earth’s first atmosphere
A.
contained no oxygen atoms.
B.
consisted of carbon in the form of carbon dioxide.
C.
was very similar to today’s atmosphere.
D.
consisted of carbon in the form of carbon monoxide.
E.
contained nitrogen in the form of ammonia and nitrogen gas.
5 points
QUESTION 11
Rickettsias belong to which major group of bacteria?
A.
Archaea
B.
cyanobacteria
C.
spirochetes
D.
viruses
E.
Proteobacteria
5 points
QUESTION 12
The Cambrian Explosion provided a wealth of fossil remains for scientists to uncover. Many of the animals from this time period had tough skins or shells. This would
A.
make these animals more desirable to predators.
B.
be a disadvantage for these organisms and lead to their death and fossil formation.
C.
allow the animals to move into different environments easily.
D.
protect the animal from osmotic pressure.
E.
protect the animal from predators.
5 points
QUESTION 13
What is the mai.
Chapter 1 assessment cut and paste
This document provides an overview of key concepts in biology. It discusses how biology is the study of life and how all living things derive energy from the sun, are composed of chemicals, and show organization at the cellular level. It also addresses how reproduction ensures the ongoing existence of species and how organisms maintain homeostasis.
Biology homework help
The document discusses the history and importance of microbiology. It describes experiments conducted by Redi and Pasteur that helped disprove the theory of spontaneous generation by showing that microbes come from other living organisms, not from non-living matter alone. It also discusses how cell theory established that cells are the basic unit of structure and function in living things, and how Koch's postulates helped link specific microbes to diseases. Finally, it examines methods of microbial control like antibiotics and how they influenced human health.
1- During your semester abroad you are taking part in a field study in.pdf
1. During your semester abroad you are taking part in a field study in a tropical localtion.
Although the area is in the tropics you are afforded indoor plumbing and electricity during your
stay. However, because you are at risk to specific parasitic roundworms your instructor explains
how to stay safe from infection. Which of the following statements will help you avoid
infection?
Multiple Choice
a. Mosquito repellent should be worn during the day and mosquito netting should be used while
sleeping to protect you from Wuchereria bancrofti .
b. Mosquito repellent should be worn during the day and mosquito netting should be used while
sleeping to protect you from Necator americanus .
c. Shoes (no open-toed shoes or sandals) or boots should be worn to prevent infection by
Wuchereria bancrofti .
d. Shoes (no open-toed shoes or sandals) or boots should be worn to prevent infection by
Necator americanus .
2. Most cnidarians possess two distinct body forms: the polyp, which is _________blank, and the
medusa, which is _________blank.
Multiple Choice
a. sessile; motile.
b. asymmetric; radially symmetric.
c. poisonous; nonpoisonous.
d. diplobastic; triploblastic.
3. Insects - of the subphylum Hexapoda - are remarkable for how successful they have been and
for their diversity. Which of these are key traits that help the insects, in particular, be so
widespread, diverse, and in so many ecological roles? true or false
a. Most insects have wings. True or False
b. Most insects molt their hard exoskeleton. True or False
c. Insect mouthparts are specialized in many different forms. True or False
d. Insects are parasites so they benefit from the work and nutrition of other animals. True or
False
e. The diets of insects, overall, are extremely varied, so different insects can specialize in almost
any food source. True or False
4. Your lab group is presented with an unknown mollusk. Your task is to assign it to one of the
major taxonomic classes. Which characteristic would allow you to say definitively that it belongs
to the Class Cephalopoda?
Multiple Choice
a. Mantle.
b. Gills.
c. Nephridia.
d. A closed circulatory system.
5. Jellyfish sting through specialized cells on their tentacles. Which of these has the most similar
function to the sting of a jellyfish:
Multiple Choice
a. The sting of a bee is because it injects venom to defend itself when threatened.
b. The bite of a snake because it injects venom to immobilize prey to eat.
c. The thorn of a cactus makes it too pointy to chew up.
d. The irritating oils of poison ivy or poison oak that rub onto animals that come in contact with
it.
6. Segmentation in the annelid worms has facilitated locomotion and specialization of different
parts of these animals. Evaluate the following statements about segmentation in the annelids and
determine if they are true or false.
A. Excretion is accomplished by paired protonephridia with flame cells in every segment of the
body. True or False
B. If the organs in one segment fa.
2010 semester exam review
This document provides a review for a semester exam covering topics in biology. It begins by defining the three types of variables in an experiment - controlled, manipulated, and responding variables. Next, it lists the eight characteristics of living things and provides examples. It defines homeostasis and discusses the importance of following safety procedures. The document then reviews experimental design and provides examples of descriptive, comparative, and experimental labs. It continues reviewing topics including the classification system, microscopes, cells, and more.
1. Based on molecular evidence, fungi were present on land at least a.pdf
1. Based on molecular evidence, fungi were present on land at least a. 1 billion years ago. b. 500
million years ago. c, 250 million years ago. d. 125 million years ago. e. 10 million years ago.
2.The study of fungi is called a. ecology b. botany c. mycology d. microbiology e. parasitology
3. Yeast are a. single-celled fungi. b. multicellular plants. c. single-celled plants. d. single-celled
protists. e. multicellular fung 4. The substance that typically provides rigidity to fungal cell
walls, and is found in some animals, is a. lignin b. cellulose c. starch d. collagen e. chitin 5. All
fungi can reproduce via a. asci b. fruiting bodies C. spores d. conidia e. basidia 6. Mating types
in fungi are generally termed a. sperm and eggs. b. Band B. c. male and female. d. plus and
minus. e. Fungi do not have specific mating types.
Solution
(1) b. 500 million years ago
(2) c. Mycology
(3) a. single-celled fungi
(4)e. chitin
(5)c. spores
(6)e. fungi do not have specific mating types
Fungal reproduction can be sexual, asexual or both..
Biology final
This document is a biology final exam for Mrs. Glemaud's class in 2010-2011. It contains 60 multiple choice questions testing students' knowledge of key biology concepts across several units, including cell structure and function, cellular respiration, photosynthesis, genetics, and mitosis. The questions cover topics such as the parts of the cell, organelle functions, energy production in cells, the cell cycle, Mendelian genetics, and inheritance patterns.
Biology final
This document is a biology final exam for Mrs. Glemaud's class in 2010-2011. It contains 60 multiple choice questions testing students' knowledge of key biology concepts across several units, including cell structure and function, cellular respiration, photosynthesis, genetics, and mitosis. The questions cover topics such as the parts of the cell, organelle functions, energy production in cells, the cell cycle, Mendelian genetics, and inheritance of traits.
DOC-20240210-WA0021..docxaaaaaaaaaaaaaaaaaaa
This document contains a revision test with multiple choice and short answer questions about biological classification and the living world. Some of the questions test scientific names of organisms, rules of nomenclature, taxonomic ranks, and key characteristics of domains, kingdoms, and phyla. The document aims to help students review and reinforce their understanding of taxonomy, biological classification systems, and distinguishing features of major organism groups.
Bio sol cbse_2011-12
This document provides information about a CBSE board examination for Studymate Solutions. It includes instructions for students taking the exam, such as writing their code number and serial numbers for questions. The biology section of the exam is outlined, with details about the four sections (A, B, C, D), number of questions in each section, and allocation of marks. General instructions are provided about questions being compulsory and choices for internal questions. Diagrams should be labeled where necessary. Section A contains 8 one-mark questions, Section B has 10 two-mark questions, Section C comprises 9 three-mark questions, and Section D consists of 3 five-mark questions.
Please help me answer these questions below- 1- This organism is in th.pdf
Please help me answer these questions below:
1. This organism is in the phylum Proteobacteria
a. Bacillus
b. Klebsiella
c. Mycobacterium
d.Staphylococcus
e. Treponema
2. This structure can be used by pathogenic bacteria to resist being eaten by
a. Capsule
b. Cell wall
c.Endospores
d.Fimbriae
e.Flagella
3. What is one difference between a fungus and a Gram-positive bacterium?
a. The bacterium has a cell wall
b.The bacterium has a nucleus
c.The bacterium has a phospholipid bilayer
d. The fungus has a cell wall
e. The fungus has mitochondria
4. A flat, segmented helminth
a. Amoebozoa
b. Cestode
c. Lichen
d. Nematode
e. Trematode
5. Organisms in the family Enterobacteriaceae
a. Are bacilli
b. Are eukaryotic
c. Are Gram-positive
d. Are never harmful
e. Include all organisms that live in the intestines.
1- Microbiology became an aceepted branch of 3- Which of these three l.docx
1. Microbiology became an aceepted branch of 3. Which of these three legs of Medical biological science Mierobiology came into use a while after A. when it was proposed, in 1546 , by Girolamo Microbiology was necepted? Fracastoro regarding objects carrying A. Sanitation pathogens. B. Vaccination. C. Antibioties B. in the late 1600 s with the invention of D. Disinfectants microscopes by Hook and van Lecuwenhoek's description of common microbes in solutions like saliva. E. Sterilization C. when objections to experiments where sterility 4. The range of different types of microbially was maintained in air-tight containers were produced chemicals circulating in your body are addressed by allowing air exchange. A. primarily pathogenic. D. when the 4 humors and treatments like bleeding B. removed by antibodies patients became unpopular and sanitation. C. primarily antibiotics. became the new focus. D. removed by kidneys. E. because discase became more of a problem, E. greater than the range from your tissues. with small pox and tuberculosis killing large numbers of people. 5. The most common phylogenetic trees of genetic diversity show that larger, multicellular creatures, like you and me, don't have a great deal of genetic diversity compared to the microbial world. But 2. Fleming discovered penicillin by structurally these multicellular creatures are quite A. chemical synthesis. diverse. Genetic diversity, on the other hand, mos B. observing infections. importantly corresponds to diversity in gene C. studying antibiotics. A. sequence. D. therapy. D. studying contamination. B. regulation. E. translation. E. analyzing moldy oranges. 6. Henatz Scmmelweis was not a popponent of porm theory bur his stery is instructive in understanding obsatacles to germ theory beenule A. doetor's warda had 3 times the mortality of whitr elycucatyx inclube midwife wards. B. his peers dismissed his ideas, since they ran contrary to established medical opinion. C. puemeral fever (or childbed fever) was common in mid-19th-century hospitals. D. the handwashing decreased mortakity rates. A. phaposytiring (enfeling) oher cetiti. E. he proposed the practice of washing with chlorinated lime solution. B. preventing phapocyrosis by other cells. glyoocalyz. D. cataking cavities H. faking of surface skin cells oft from the 7. These are mostly Koch's postulates, out of order. Choose the one not from Koch's postulates. The pathogen: A. can be isolated and grown in pure culture. B. must be present in all eases of the disease. C. must be found in most animals, for compatibility. D. must be reisolated from the new host and shown to be the same strain. E. pure culture isolate must cause the disease. 12. The Gram positive cell envelope does not include A. cytosolic membranc. B. Peptidoglycan. Chapter 3 C. molecular anchors for peptidoglycan. D. proteins blocking entry to peptidoglycan 8. Bacterial translation of mRNA typically occurs E. All of these are Gram positive features. A. in the n.
NAT Review for Biology
This 35-item reviewer tests knowledge of various biology concepts through multiple choice questions. It covers topics like cellular reproduction, organelle functions, symbiotic relationships, ecosystems, cellular transport, genetics, and more. Test takers have 30 seconds to answer each question before moving to the next slide. No returning to previous questions is allowed.
Chapter 27
1. Prokaryotes are ubiquitous and outnumber eukaryotes, inhabiting nearly all environments through symbiotic relationships. They are divided into bacteria and archaea.
2. Prokaryotes differ from eukaryotes in their lack of membrane-bound organelles and smaller genome size. They reproduce through binary fission and genetic variation occurs through transformation, conjugation, and transduction.
3. Prokaryotes play important ecological roles in nutrient cycling as decomposers and through symbiotic relationships, but some are also agents of disease.
General education-natural-science
This document contains a practice test for a general education natural science reviewer consisting of 40 multiple choice questions covering various topics in biology, anatomy, health, and earth science. The questions assess knowledge of topics like adaptive mechanisms, gene manipulation, hormones, endocrine disorders, cell structures, ecosystems, photosynthesis, human physiology, immunity, reproduction, and more. The practice test is from a website and Facebook page called InfiniThink providing educational review materials.
A2+revision+notes unit 7 - microbes & disease
This document provides a summary of key concepts in microbiology and bacterial disease. It discusses important scientists like Pasteur and Fleming and how they advanced the field. It describes the classification, structure, and modes of reproduction of bacteria. Gram staining divides bacteria into Gram-positive and Gram-negative types based on cell wall structure. The document also outlines bacterial growth phases and cycles, and how physical and chemical methods can be used to control bacterial growth.
test bank Principles of Life Digital Update, 3e by David Hillis, Mary Price, ...
This document provides a test bank with questions and answers for Chapter 1 of the textbook "Principles of Life Digital Update, 3e by David Hillis, Mary Price, Richard Hill, David Hall, Marta Laskowski". It includes 53 multiple choice questions testing foundational concepts in biology, such as the definition of life, cellular structure, evolution, and the tree of life. The questions cover topics like the basic unit of life (the cell), the early evolution of life on Earth, the emergence of eukaryotes and multicellular organisms, and the three domain system of classifying life.
Biology trimester 2 final study guide
1. A virus consists of genetic material within a protective protein coat that allows it to enter a host cell. Viruses can infect cells through either a lysogenic or lytic cycle.
2. Bacteria are unicellular or multicellular prokaryotes that come in spiral, round, or rod shapes. They can be inhibited through processes like pasteurization, dehydration, freezing, or canning.
3. DNA carries genetic information in the form of genes and is composed of nucleotides with nitrogen bases that pair up in the helical structure. Cells use transcription and translation to read this genetic code and produce proteins.
Biological classification .pdf
This document provides a 40 question biology classification test with multiple choice answers. It includes questions testing knowledge of archaebacteria characteristics, mycorrhiza, uses of E. coli in research, diatom shell composition, kingdom classification systems, fungal reproduction, virus structure, bacterial shapes, decomposer roles and more. The test is scored out of 160 total marks and takes approximately 45 minutes to complete.
Some bacteria form endospores in response to --- A- sterilization- B- (1).docx
Some bacteria form endospores in response to ... A. sterilization. B. the abundance of nutrients. C. viral infection. D. the presence of their host. E. depletion of nutrients. What is the correct order of structures that are involved in the production and transport of proteins that will be secreted? A. ribosomes-rough endoplasmic reticulum-Golgi apparatus-secretory vesicles B. ribosomes-Golgi apparatus-rough endoplasmic reticulum-lysosomes C. ribosomes-smooth endoplasmic reticulum-Golgi apparatus-nucleus D. nucleus-secretory vesicles-lysosomes-Golgi apparatus E. Golgi apparatus-transitional vesicles-ribosomes-lysosomes How are viruses classified? a. They are prokaryotes. b. They are neither prokaryotes nor eukaryotes. c. They are prokaryotes in early stages of their life cycle, and eukaryotes in late stages. d. They are eukaryotes. What is the general function of the plasma membrane? A. To enable cell movement. B. To provide structural support and shape due to its rigidity. C. To synthesize and store lipids. D. To provide protection and adherence of cells to surfaces. E. To select what gets into and out of the cell. Which of the following statements about archaea is correct? A. Archaea are not bacteria because they are more closely related to eukaryotes than bacteria. B. Archaea are a type of fungi that live deep underground. C. Archaea are a type of eukaryotic organism. D. Archaea belong to cyanobacteria E. Archaea are a type of bacteria that Ive in extreme environments. Genetic material of a eukaryotic cell is present in the nucleus in the form of A. hyphae. B. vesicles. C. plasmid. D. chromatin. E. histones.
.
160 04b notes cytology
This document provides notes on cytology from a biology lecture. It begins by outlining cell theory and discussing the sizes of different cell types. It then describes the structures and functions of prokaryotic and eukaryotic cells. Prokaryotic cell structures include the plasma membrane, cell wall, capsule, pili, flagella, nucleoid region, and ribosomes. Eukaryotic cell structures include the plasma membrane, microvilli, gap junctions, cytoskeleton, organelles like mitochondria, chloroplasts, the endoplasmic reticulum, Golgi apparatus, lysosomes, peroxisomes, and the nucleus. The document concludes by discussing differences between prokaryotic and euk
Chapter 19 Review Questions
The document contains 20 multiple choice questions about animal biology concepts. It asks about the roles of bats, characteristics of animals, hypotheses of animal origins, evolutionary innovations in the animal kingdom, body structures like symmetry, germ layers and body cavities. The questions cover topics like sponges, cnidarians, flatworms, tapeworms and roundworms. It tests knowledge of the defining features, life cycles and examples of different phyla within the animal kingdom.
Biology and you chapter 1
The document provides an overview of key biology concepts such as the basic properties of life, cellular structure and function, metabolism, heredity, evolution, and ecology. It also discusses how biology can help address issues like population growth, feeding the world, and fighting diseases. The scientific process is outlined as a way for biologists to investigate biological questions and phenomena.
Definitions and mcqs on branches of Biology by Sajid Ali Talpur
The document defines 30 branches of biology and provides 30 multiple choice questions related to those branches. It discusses fields like zoology, botany, microbiology, genetics, ecology, and others. It also provides the answers to the multiple choice questions.
8- Which of the following statements are FALSE about the phylum Chorda.pdf
8. Which of the following statements are FALSE about the phylum Chordata. a. All chordates
have a postanal tal at some stage in life. b. All chordates have pharyngeal slits that wit develop
into ancther structure. c. In all chordates, the notochord is replaced by the soinal column during
development. e. Both B and C are FALISE 9. Deuterostomes exhibit. a. Radial cleavage b. The
blastopore becomes an anus c. Diploblastic germ layers d. Both A and B e. A , B , and C are all
correct 10. Damage to its flagellum would prevent a choanocyte from a. circulating water
through the sponge. b. stinging and capturing prey. c. secreting spongin to form the spenge body.
d. producing the supportive spicules. 11. How could a biologist distingaish an acoelomate
flatworm from a free-living nematode? a. The acoelomate worm would be solid throughout since
it lacks a true gut: b. The acoelomate worm would havo a nervous system. c. The nematode
would have a more primitive gut and nervous system. d) Only the acoelomate is triploblastic. 12.
Linnaeus lumped all of the worm-like animals into the category Vermes (Vermis is Latin for
worm). is this a vald classification scheme? a. No, because some worms are protists: b. Yes,
because all worms are members of the same kingdom and phylum. c. Yes, because all worm-like
animals are more closely related to each other than they are to other animals due to the
evolutionary history of this body plan. d. No, because the worm-like body plan has appeared
many times through evolutionary history and is not a useful trait for classification. 13. Which of
the following terms is mismutched with its meaning or characteristics? a. Diploblastic-ectoderm
and mesoderm b. Triploblastic-ectoderm, mesoderm, and endoderm c. Porifera-lacks symmetry
no tissues d. Chordate-an animal with notochord 14. The most diverse of the four eukaryotic
kingdoms is the: a. Protista Kingdom. b. Bacteria Kingdom. c. Plantae Kingdom. d. Animalia
kingdom. 15. Of the folowing features, which is the most widely shared in the animal kingdom?
a. protortome development b. radial cleavare c. inolring of a cuticle or exoskieleton d. a bady
gian with.iymmetry e. a triploblastic embryo.
1- How can you model allele frequency change over time in a haploid ge.pdf
This document discusses modeling allele frequency change over time in genetic populations. It asks how allele frequencies change in haploid versus diploid systems, and how the results differ based on whether dominant, codominant, or recessive alleles are favored. It also asks about the ultimate fate of alleles in a population when both mutation and selection operate simultaneously.
1- How could Esquel achieve their ambitious sustainability- people- an.pdf
1. How could Esquel achieve their ambitious sustainability, people, and community-oriented
objectives in a highly competitive industry when most of its competitors were using a low-cost
production strategy?
2. How should Esquel prepare itself for the risks from this Integral project? What kind of hurdles
could they face as they engage more deeply in this venture and effort?
3. Would the Integral project yield financial returns? Discuss the potential scenarios both in the
short run through tangible and the intangible benefits of this sustainable development project, as
well as long run tangible and/or intangible benefits.
4. How should Esquel plan for the changing labor force and cost pressures in China? What are
they alternatives in this regard, and what opportunities does the Integral project present to Esquel
as they react to and manage these labor trends in China? In particular, how could they use the
Integral project as an experiment to explore the future opportunities and challenges of operating
out of China?
5. How could they involve their existing workforce in the Integral project?
6. What were the other business and corporate opportunities presented by the Guilin site, in the
context of the capacity restrictions at the site?.
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1. Based on molecular evidence, fungi were present on land at least a.pdf
1. Based on molecular evidence, fungi were present on land at least a. 1 billion years ago. b. 500
million years ago. c, 250 million years ago. d. 125 million years ago. e. 10 million years ago.
2.The study of fungi is called a. ecology b. botany c. mycology d. microbiology e. parasitology
3. Yeast are a. single-celled fungi. b. multicellular plants. c. single-celled plants. d. single-celled
protists. e. multicellular fung 4. The substance that typically provides rigidity to fungal cell
walls, and is found in some animals, is a. lignin b. cellulose c. starch d. collagen e. chitin 5. All
fungi can reproduce via a. asci b. fruiting bodies C. spores d. conidia e. basidia 6. Mating types
in fungi are generally termed a. sperm and eggs. b. Band B. c. male and female. d. plus and
minus. e. Fungi do not have specific mating types.
Solution
(1) b. 500 million years ago
(2) c. Mycology
(3) a. single-celled fungi
(4)e. chitin
(5)c. spores
(6)e. fungi do not have specific mating types
Fungal reproduction can be sexual, asexual or both..
Biology final
This document is a biology final exam for Mrs. Glemaud's class in 2010-2011. It contains 60 multiple choice questions testing students' knowledge of key biology concepts across several units, including cell structure and function, cellular respiration, photosynthesis, genetics, and mitosis. The questions cover topics such as the parts of the cell, organelle functions, energy production in cells, the cell cycle, Mendelian genetics, and inheritance patterns.
Biology final
This document is a biology final exam for Mrs. Glemaud's class in 2010-2011. It contains 60 multiple choice questions testing students' knowledge of key biology concepts across several units, including cell structure and function, cellular respiration, photosynthesis, genetics, and mitosis. The questions cover topics such as the parts of the cell, organelle functions, energy production in cells, the cell cycle, Mendelian genetics, and inheritance of traits.
DOC-20240210-WA0021..docxaaaaaaaaaaaaaaaaaaa
This document contains a revision test with multiple choice and short answer questions about biological classification and the living world. Some of the questions test scientific names of organisms, rules of nomenclature, taxonomic ranks, and key characteristics of domains, kingdoms, and phyla. The document aims to help students review and reinforce their understanding of taxonomy, biological classification systems, and distinguishing features of major organism groups.
Bio sol cbse_2011-12
This document provides information about a CBSE board examination for Studymate Solutions. It includes instructions for students taking the exam, such as writing their code number and serial numbers for questions. The biology section of the exam is outlined, with details about the four sections (A, B, C, D), number of questions in each section, and allocation of marks. General instructions are provided about questions being compulsory and choices for internal questions. Diagrams should be labeled where necessary. Section A contains 8 one-mark questions, Section B has 10 two-mark questions, Section C comprises 9 three-mark questions, and Section D consists of 3 five-mark questions.
Please help me answer these questions below- 1- This organism is in th.pdf
Please help me answer these questions below:
1. This organism is in the phylum Proteobacteria
a. Bacillus
b. Klebsiella
c. Mycobacterium
d.Staphylococcus
e. Treponema
2. This structure can be used by pathogenic bacteria to resist being eaten by
a. Capsule
b. Cell wall
c.Endospores
d.Fimbriae
e.Flagella
3. What is one difference between a fungus and a Gram-positive bacterium?
a. The bacterium has a cell wall
b.The bacterium has a nucleus
c.The bacterium has a phospholipid bilayer
d. The fungus has a cell wall
e. The fungus has mitochondria
4. A flat, segmented helminth
a. Amoebozoa
b. Cestode
c. Lichen
d. Nematode
e. Trematode
5. Organisms in the family Enterobacteriaceae
a. Are bacilli
b. Are eukaryotic
c. Are Gram-positive
d. Are never harmful
e. Include all organisms that live in the intestines.
1- Microbiology became an aceepted branch of 3- Which of these three l.docx
1. Microbiology became an aceepted branch of 3. Which of these three legs of Medical biological science Mierobiology came into use a while after A. when it was proposed, in 1546 , by Girolamo Microbiology was necepted? Fracastoro regarding objects carrying A. Sanitation pathogens. B. Vaccination. C. Antibioties B. in the late 1600 s with the invention of D. Disinfectants microscopes by Hook and van Lecuwenhoek's description of common microbes in solutions like saliva. E. Sterilization C. when objections to experiments where sterility 4. The range of different types of microbially was maintained in air-tight containers were produced chemicals circulating in your body are addressed by allowing air exchange. A. primarily pathogenic. D. when the 4 humors and treatments like bleeding B. removed by antibodies patients became unpopular and sanitation. C. primarily antibiotics. became the new focus. D. removed by kidneys. E. because discase became more of a problem, E. greater than the range from your tissues. with small pox and tuberculosis killing large numbers of people. 5. The most common phylogenetic trees of genetic diversity show that larger, multicellular creatures, like you and me, don't have a great deal of genetic diversity compared to the microbial world. But 2. Fleming discovered penicillin by structurally these multicellular creatures are quite A. chemical synthesis. diverse. Genetic diversity, on the other hand, mos B. observing infections. importantly corresponds to diversity in gene C. studying antibiotics. A. sequence. D. therapy. D. studying contamination. B. regulation. E. translation. E. analyzing moldy oranges. 6. Henatz Scmmelweis was not a popponent of porm theory bur his stery is instructive in understanding obsatacles to germ theory beenule A. doetor's warda had 3 times the mortality of whitr elycucatyx inclube midwife wards. B. his peers dismissed his ideas, since they ran contrary to established medical opinion. C. puemeral fever (or childbed fever) was common in mid-19th-century hospitals. D. the handwashing decreased mortakity rates. A. phaposytiring (enfeling) oher cetiti. E. he proposed the practice of washing with chlorinated lime solution. B. preventing phapocyrosis by other cells. glyoocalyz. D. cataking cavities H. faking of surface skin cells oft from the 7. These are mostly Koch's postulates, out of order. Choose the one not from Koch's postulates. The pathogen: A. can be isolated and grown in pure culture. B. must be present in all eases of the disease. C. must be found in most animals, for compatibility. D. must be reisolated from the new host and shown to be the same strain. E. pure culture isolate must cause the disease. 12. The Gram positive cell envelope does not include A. cytosolic membranc. B. Peptidoglycan. Chapter 3 C. molecular anchors for peptidoglycan. D. proteins blocking entry to peptidoglycan 8. Bacterial translation of mRNA typically occurs E. All of these are Gram positive features. A. in the n.
NAT Review for Biology
This 35-item reviewer tests knowledge of various biology concepts through multiple choice questions. It covers topics like cellular reproduction, organelle functions, symbiotic relationships, ecosystems, cellular transport, genetics, and more. Test takers have 30 seconds to answer each question before moving to the next slide. No returning to previous questions is allowed.
Chapter 27
1. Prokaryotes are ubiquitous and outnumber eukaryotes, inhabiting nearly all environments through symbiotic relationships. They are divided into bacteria and archaea.
2. Prokaryotes differ from eukaryotes in their lack of membrane-bound organelles and smaller genome size. They reproduce through binary fission and genetic variation occurs through transformation, conjugation, and transduction.
3. Prokaryotes play important ecological roles in nutrient cycling as decomposers and through symbiotic relationships, but some are also agents of disease.
General education-natural-science
This document contains a practice test for a general education natural science reviewer consisting of 40 multiple choice questions covering various topics in biology, anatomy, health, and earth science. The questions assess knowledge of topics like adaptive mechanisms, gene manipulation, hormones, endocrine disorders, cell structures, ecosystems, photosynthesis, human physiology, immunity, reproduction, and more. The practice test is from a website and Facebook page called InfiniThink providing educational review materials.
A2+revision+notes unit 7 - microbes & disease
This document provides a summary of key concepts in microbiology and bacterial disease. It discusses important scientists like Pasteur and Fleming and how they advanced the field. It describes the classification, structure, and modes of reproduction of bacteria. Gram staining divides bacteria into Gram-positive and Gram-negative types based on cell wall structure. The document also outlines bacterial growth phases and cycles, and how physical and chemical methods can be used to control bacterial growth.
test bank Principles of Life Digital Update, 3e by David Hillis, Mary Price, ...
This document provides a test bank with questions and answers for Chapter 1 of the textbook "Principles of Life Digital Update, 3e by David Hillis, Mary Price, Richard Hill, David Hall, Marta Laskowski". It includes 53 multiple choice questions testing foundational concepts in biology, such as the definition of life, cellular structure, evolution, and the tree of life. The questions cover topics like the basic unit of life (the cell), the early evolution of life on Earth, the emergence of eukaryotes and multicellular organisms, and the three domain system of classifying life.
Biology trimester 2 final study guide
1. A virus consists of genetic material within a protective protein coat that allows it to enter a host cell. Viruses can infect cells through either a lysogenic or lytic cycle.
2. Bacteria are unicellular or multicellular prokaryotes that come in spiral, round, or rod shapes. They can be inhibited through processes like pasteurization, dehydration, freezing, or canning.
3. DNA carries genetic information in the form of genes and is composed of nucleotides with nitrogen bases that pair up in the helical structure. Cells use transcription and translation to read this genetic code and produce proteins.
Biological classification .pdf
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Some bacteria form endospores in response to --- A- sterilization- B- (1).docx
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160 04b notes cytology
This document provides notes on cytology from a biology lecture. It begins by outlining cell theory and discussing the sizes of different cell types. It then describes the structures and functions of prokaryotic and eukaryotic cells. Prokaryotic cell structures include the plasma membrane, cell wall, capsule, pili, flagella, nucleoid region, and ribosomes. Eukaryotic cell structures include the plasma membrane, microvilli, gap junctions, cytoskeleton, organelles like mitochondria, chloroplasts, the endoplasmic reticulum, Golgi apparatus, lysosomes, peroxisomes, and the nucleus. The document concludes by discussing differences between prokaryotic and euk
Chapter 19 Review Questions
The document contains 20 multiple choice questions about animal biology concepts. It asks about the roles of bats, characteristics of animals, hypotheses of animal origins, evolutionary innovations in the animal kingdom, body structures like symmetry, germ layers and body cavities. The questions cover topics like sponges, cnidarians, flatworms, tapeworms and roundworms. It tests knowledge of the defining features, life cycles and examples of different phyla within the animal kingdom.
Biology and you chapter 1
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Definitions and mcqs on branches of Biology by Sajid Ali Talpur
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development. e. Both B and C are FALISE 9. Deuterostomes exhibit. a. Radial cleavage b. The
blastopore becomes an anus c. Diploblastic germ layers d. Both A and B e. A , B , and C are all
correct 10. Damage to its flagellum would prevent a choanocyte from a. circulating water
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it lacks a true gut: b. The acoelomate worm would havo a nervous system. c. The nematode
would have a more primitive gut and nervous system. d) Only the acoelomate is triploblastic. 12.
Linnaeus lumped all of the worm-like animals into the category Vermes (Vermis is Latin for
worm). is this a vald classification scheme? a. No, because some worms are protists: b. Yes,
because all worms are members of the same kingdom and phylum. c. Yes, because all worm-like
animals are more closely related to each other than they are to other animals due to the
evolutionary history of this body plan. d. No, because the worm-like body plan has appeared
many times through evolutionary history and is not a useful trait for classification. 13. Which of
the following terms is mismutched with its meaning or characteristics? a. Diploblastic-ectoderm
and mesoderm b. Triploblastic-ectoderm, mesoderm, and endoderm c. Porifera-lacks symmetry
no tissues d. Chordate-an animal with notochord 14. The most diverse of the four eukaryotic
kingdoms is the: a. Protista Kingdom. b. Bacteria Kingdom. c. Plantae Kingdom. d. Animalia
kingdom. 15. Of the folowing features, which is the most widely shared in the animal kingdom?
a. protortome development b. radial cleavare c. inolring of a cuticle or exoskieleton d. a bady
gian with.iymmetry e. a triploblastic embryo.
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1- during which phase of growth or bacteria- most susceptible to antib (1).pdf
- 1. 1. during which phase of growth or bacteria, most susceptible to antibiotics? A. lag b.stationary c.decline d.log 2. which is usually not sure of Archaea? A. they are found as rods, spheres,or spirals b. They contain peptidoglycan as part of their cell walls. c. They contain rigid cell walls. d. They reproduce by binary fission. e. They are found a single cells. 3.Endotoxin A. consists of LPS B. May have different effects, depending on the specific bacterial source C. Determines bacterial shape. D. Is toxic due to the effects of peptide side chain. e. Determines bacterial shape,, may have different effects depending on the specific bacteria source, AND is toxic to the affects of the peptide side chains. 4. The capsule A. Maybe used for protection AND Maybe used to help the bacteria adhere to surfaces B. May be involved in energy production. C. maybe used for protection D. Maybe involved in movement e. May be used to help the bacteria to here to surfaces. 5. pathogen in potato salad at picnic in sun. assume 10 cells with 20 minute generation time what is the number of cells and population add time for hours?(state formula) A. lag b.stationary c.decline d.log 2. which is usually not sure of Archaea? A. they are found as rods, spheres,or spirals b. They contain peptidoglycan as part of their cell walls. c. They contain rigid cell walls. d. They reproduce by binary fission. e. They are found a single cells. 3.Endotoxin A. consists of LPS
- 2. B. May have different effects, depending on the specific bacterial source C. Determines bacterial shape. D. Is toxic due to the effects of peptide side chain. e. Determines bacterial shape,, may have different effects depending on the specific bacteria source, AND is toxic to the affects of the peptide side chains. 4. The capsule A. Maybe used for protection AND Maybe used to help the bacteria adhere to surfaces B. May be involved in energy production. C. maybe used for protection D. Maybe involved in movement e. May be used to help the bacteria to here to surfaces. 5. pathogen in potato salad at picnic in sun. assume 10 cells with 20 minute generation time what is the number of cells and population add time for hours?(state formula)