Question 1

Sometimes antiviral drugs stop working because viruses can evolve and become ________ to the drug.

Accepted Answer

The answer of Sometimes antiviral drugs stop working because viruses...

Question 2

The bacteria Clostridium tetani forms spore in the presence of oxygen.This indicates that these bacteria are

Accepted Answer

A)  autotrophic. 
B)  halophilic. 
C)  aerobic. 
D)  anaerobic. 
A)  autotrophic. 
B)  halophilic. 
C)  aerobic. 
D)  anaerobic.

Question 3

The structure labeled A,below,is cilia,used by both prokaryotes and eukaryotes to move through fluid.

Accepted Answer

A) True 
 B)False

Question 4

The organisms found living inside boiling-hot geysers can be described as thermophiles.

Accepted Answer

A) True 
 B)False

Question 5

Viruses may rapidly evolve resistance to vaccines and medications by modifying their DNA;what mechanism(s)do they use?

Accepted Answer

A)  Dying viruses burst open,and another virus can take up the released DNA. 
B)  Adjacent viruses form a conjugation tube and exchange DNA laterally. 
C)  Viral DNA replication is sloppy;random DNA variations often result in viral proteins that reduce the effectiveness of current treatments. 
D)  One virus can produce enzymes that change the DNA of another virus. 
A)  Dying viruses burst open,and another virus can take up the released DNA. 
B)  Adjacent viruses form a conjugation tube and exchange DNA laterally. 
C)  Viral DNA replication is sloppy;random DNA variations often result in viral proteins that reduce the effectiveness of current treatments. 
D)  One virus can produce enzymes that change the DNA of another virus.

Question 6

The status of viruses has been controversial,but most biologists now agree that the most appropriate description for a virus is a microscopic,________ infective particle.

Accepted Answer

The answer of The status of viruses has been controversial,but...

Question 7

Using the simplest methods to study the composition of intestinal microbial flora,it is necessary to collect a ________ sample from the subject.

Accepted Answer

The answer of Using the simplest methods to study the...

Question 8

A disproportionate number of viral infections occur in the respiratory and digestive systems;how might this be explained?

Accepted Answer

A)  New viral particles can be easily released in feces or exhaled air. 
B)  The lung,stomach,and intestinal tract can be easily reached when the virus contacts a new host. 
C)  The immune response may be less vigorous or effective in these locations. 
D)  Viruses can reproduce in these systems without infecting host cells. 
A)  New viral particles can be easily released in feces or exhaled air. 
B)  The lung,stomach,and intestinal tract can be easily reached when the virus contacts a new host. 
C)  The immune response may be less vigorous or effective in these locations. 
D)  Viruses can reproduce in these systems without infecting host cells.

Question 9

Wetland soils are saturated with water and devoid of oxygen,creating a habitat ideally suited for ________ organisms.

Accepted Answer

The answer of Wetland soils are saturated with water and...

Question 10

Which of the following pairs of kingdoms would be included exclusively in the domain Eukarya?

Accepted Answer

A)  Plantae and Bacteria 
B)  Animalia and Archaea 
C)  Animalia and Fungi 
D)  Protista and Bacteria 
A)  Plantae and Bacteria 
B)  Animalia and Archaea 
C)  Animalia and Fungi 
D)  Protista and Bacteria

Question 11

Which of the following is NOT part of the modern system of biological classification?

Accepted Answer

A)  Fungi 
B)  Archaea 
C)  Eukaryote 
D)  Prokaryote 
A)  Fungi 
B)  Archaea 
C)  Eukaryote 
D)  Prokaryote

Question 12

The following figure shows a bacterium dividing by binary fission.The DNA in the daughter cell formed on the left is ________ to the DNA in the daughter cell to the right.

Accepted Answer

The answer of The following figure shows a bacterium dividing...

Question 13

Which of the following statements about bacteria is FALSE?

Accepted Answer

A)  They are important for nutrient recycling in ecosystems. 
B)  They can provide the nitrate necessary for plant nutrition. 
C)  They can be used to clean up oil spills. 
D)  The membranes from their organelles can be used to produce medicines. 
A)  They are important for nutrient recycling in ecosystems. 
B)  They can provide the nitrate necessary for plant nutrition. 
C)  They can be used to clean up oil spills. 
D)  The membranes from their organelles can be used to produce medicines.

Question 14

A disease-causing cellular organism is found in the lungs of a patient with a respiratory infection.This cellular organism in most likely a(n)

Accepted Answer

A)  bacterium. 
B)  archaea. 
C)  virus. 
D)  psychrophile. 
A)  bacterium. 
B)  archaea. 
C)  virus. 
D)  psychrophile.

Question 15

The infective strategy seen in the retroviruses does not involve ________ the host cell.

Accepted Answer

A)  the insertion of RNA and its conversion to DNA within 
B)  the integration of the viral genetic material into the DNA of 
C)  an initial symptom-free period with no pathology evident in 
D)  the production of exotoxins within 
A)  the insertion of RNA and its conversion to DNA within 
B)  the integration of the viral genetic material into the DNA of 
C)  an initial symptom-free period with no pathology evident in 
D)  the production of exotoxins within

Question 16

New bacteria are identified in the large intestines of a healthy person.Are the bacteria likely to be a human pathogen?

Accepted Answer

A)  Yes,any bacteria found within the human body are a human pathogen. 
B)  Yes,only pathogenic bacteria can survive in the human digestive tract. 
C)  No,most bacteria are harmless to humans. 
D)  No,pathogenic bacteria cannot survive in the human digestive tract. 
A)  Yes,any bacteria found within the human body are a human pathogen. 
B)  Yes,only pathogenic bacteria can survive in the human digestive tract. 
C)  No,most bacteria are harmless to humans. 
D)  No,pathogenic bacteria cannot survive in the human digestive tract.

Question 17

Large-scale agriculture usually ________ biodiversity.

Accepted Answer

A)  increases 
B)  decreases 
C)  has no effect on 
D)  improves 
A)  increases 
B)  decreases 
C)  has no effect on 
D)  improves

Question 18

All bacteria have the same shape.

Accepted Answer

A) True 
 B)False

Question 19

In addition to the Bacteria,which other kingdom is composed exclusively of prokaryotic organisms?

Accepted Answer

A)  Archaea 
B)  Fungi 
C)  Protista 
D)  Plantae 
A)  Archaea 
B)  Fungi 
C)  Protista 
D)  Plantae

Question 20

Drugs that are produced by living organisms that are effective against bacteria,but not viruses,are known as ________.

Accepted Answer

The answer of Drugs that are produced by living organisms...

Exam 17: Biological Diversity, Bacteria, and Archaea

Sometimes antiviral drugs stop working because viruses can evolve and become ________ to the drug.

The bacteria Clostridium tetani forms spore in the presence of oxygen.This indicates that these bacteria are

The structure labeled A,below,is cilia,used by both prokaryotes and eukaryotes to move through fluid.

The organisms found living inside boiling-hot geysers can be described as thermophiles.

Viruses may rapidly evolve resistance to vaccines and medications by modifying their DNA;what mechanism(s)do they use?

The status of viruses has been controversial,but most biologists now agree that the most appropriate description for a virus is a microscopic,________ infective particle.

Using the simplest methods to study the composition of intestinal microbial flora,it is necessary to collect a ________ sample from the subject.

A disproportionate number of viral infections occur in the respiratory and digestive systems;how might this be explained?

Wetland soils are saturated with water and devoid of oxygen,creating a habitat ideally suited for ________ organisms.

Which of the following pairs of kingdoms would be included exclusively in the domain Eukarya?

Which of the following is NOT part of the modern system of biological classification?

The following figure shows a bacterium dividing by binary fission.The DNA in the daughter cell formed on the left is ________ to the DNA in the daughter cell to the right.

Which of the following statements about bacteria is FALSE?

A disease-causing cellular organism is found in the lungs of a patient with a respiratory infection.This cellular organism in most likely a(n)

The infective strategy seen in the retroviruses does not involve ________ the host cell.

New bacteria are identified in the large intestines of a healthy person.Are the bacteria likely to be a human pathogen?

Large-scale agriculture usually ________ biodiversity.

All bacteria have the same shape.

In addition to the Bacteria,which other kingdom is composed exclusively of prokaryotic organisms?

Drugs that are produced by living organisms that are effective against bacteria,but not viruses,are known as ________.

The Nature of Science and the Characteristics of Life

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Cancer and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

DNA and Genes

From Gene to Protein

DNA Technology

How Evolution Works

The Origin of Species

The Evolution of Biodiversity

Protista, Plantae, and Fungi

Animalia

The Biosphere

Growth of Populations

Animal Behavior

Ecological Communities

Ecosystems

Global Change

Internal Organization and Homeostasis

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons,Muscles,and Movement

The Immune System

Reproduction and Development

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

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