Question 1

H1N1 is a strain of the influenza virus.

Accepted Answer

A) True 
 B)False  True

Question 2

Archaea,Bacteria,and Eukarya are the three biological domains.

Accepted Answer

A) True 
 B)False  True

Question 3

At the present time

Accepted Answer

A)  all living organisms have been discovered, named, and their relationships to other organisms described. 
B)  humans have just finished a complete count of the number of species on Earth. 
C)  the diversity of organisms on Earth is not completely known and estimates of the number of unknown species vary 10-fold. 
D)  there is no consensus regarding the appropriate classification strategy for the currently known organisms. 
A)  all living organisms have been discovered, named, and their relationships to other organisms described. 
B)  humans have just finished a complete count of the number of species on Earth. 
C)  the diversity of organisms on Earth is not completely known and estimates of the number of unknown species vary 10-fold. 
D)  there is no consensus regarding the appropriate classification strategy for the currently known organisms. C

Question 4

Which of the following is most likely caused by bacterial conjugation?

Accepted Answer

A)  explosive growth and biofilm production by a community of bacteria 
B)  the discovery that antibiotic resistance genes are now present in bacteria that historically have been sensitive to the antibiotic 
C)  sporulation of the bacteria Bacillus anthracis when they are dehydrated 
D)  the ability of cyanobacteria to convert light energy into cellular energy 
A)  explosive growth and biofilm production by a community of bacteria 
B)  the discovery that antibiotic resistance genes are now present in bacteria that historically have been sensitive to the antibiotic 
C)  sporulation of the bacteria Bacillus anthracis when they are dehydrated 
D)  the ability of cyanobacteria to convert light energy into cellular energy

Question 5

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 6

Bacteria,Archaea,and Eukarya are the three ________; they form the broadest hierarchical level in the organization of life.

Accepted Answer

The answer of Bacteria,Archaea,and Eukarya are the three ________; they...

Question 7

A scientist discovers a new soil bacteria.The bacteria are impossible to grow on culture dishes in the laboratory.What is the most likely method by which the scientist discovered the bacteria?

Accepted Answer

A)  by observing a soil sample through a microscope 
B)  by growing a biofilm of the bacteria on a culture dish 
C)  by isolating and analyzing DNA from a soil sample 
D)  by producing a vaccine to the bacteria 
A)  by observing a soil sample through a microscope 
B)  by growing a biofilm of the bacteria on a culture dish 
C)  by isolating and analyzing DNA from a soil sample 
D)  by producing a vaccine to the bacteria

Question 8

Bacteria and fungi never occupy the same ecological niche.

Accepted Answer

A) True 
 B)False

Question 9

Antibiotics are not effective against nonliving infections.

Accepted Answer

A) True 
 B)False

Question 10

The naturally occurring fungus Penicillium produces an antibiotic substance that kills bacteria.Why does the fungus produce this substance?

Accepted Answer

A)  to form a biofilm 
B)  to serve as a nutrient 
C)  to cure human infections 
D)  to kill bacteria that are competing with it for resources 
A)  to form a biofilm 
B)  to serve as a nutrient 
C)  to cure human infections 
D)  to kill bacteria that are competing with it for resources

Question 11

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 12

Humans usually do NOT contract bacterial diseases from other animals because

Accepted Answer

A)  bacteria can only live in a small range of environments. 
B)  other animals are only infected with archaea. 
C)  bacteria are not transmitted between animals and humans. 
D)  most bacterial species only infect one or a few closely related species. 
A)  bacteria can only live in a small range of environments. 
B)  other animals are only infected with archaea. 
C)  bacteria are not transmitted between animals and humans. 
D)  most bacterial species only infect one or a few closely related species.

Question 13

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 14

Aerobic organisms can survive without oxygen.

Accepted Answer

A) True 
 B)False

Question 15

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 16

Viral classification and biology has been challenging; presently,most biologists agree that viruses

Accepted Answer

A)  should be classified as members of the kingdom Protista. 
B)  are constructed from a protein wrapped around DNA or RNA. 
C)  use a photosynthetic process more similar to bacteria than plants. 
D)  should be classified as autochemotrophic. 
A)  should be classified as members of the kingdom Protista. 
B)  are constructed from a protein wrapped around DNA or RNA. 
C)  use a photosynthetic process more similar to bacteria than plants. 
D)  should be classified as autochemotrophic.

Question 17

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 18

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

Accepted Answer

A) True 
 B)False

Question 19

Microscopic examination can often resolve questions in taxonomy; for example,cells that possess a nucleus are never classified as

Accepted Answer

A)  eukaryote. 
B)  fungi. 
C)  archaean. 
D)  protist. 
A)  eukaryote. 
B)  fungi. 
C)  archaean. 
D)  protist.

Question 20

Like any disease or parasite,viruses need to reach new hosts to extend the infective cycle,which explains why such a large number of viral infections are associated with the

Accepted Answer

A)  urinary and cardiovascular systems. 
B)  digestive and respiratory systems. 
C)  nervous and integumentary systems. 
D)  reproductive and integumentary systems. 
A)  urinary and cardiovascular systems. 
B)  digestive and respiratory systems. 
C)  nervous and integumentary systems. 
D)  reproductive and integumentary systems.

Exam 17: Biological Diversity, Bacteria, and Archaea

H1N1 is a strain of the influenza virus.

Archaea,Bacteria,and Eukarya are the three biological domains.

At the present time

Which of the following is most likely caused by bacterial conjugation?

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

Bacteria,Archaea,and Eukarya are the three ________; they form the broadest hierarchical level in the organization of life.

A scientist discovers a new soil bacteria.The bacteria are impossible to grow on culture dishes in the laboratory.What is the most likely method by which the scientist discovered the bacteria?

Bacteria and fungi never occupy the same ecological niche.

Antibiotics are not effective against nonliving infections.

The naturally occurring fungus Penicillium produces an antibiotic substance that kills bacteria.Why does the fungus produce this substance?

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

Humans usually do NOT contract bacterial diseases from other animals because

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

Aerobic organisms can survive without oxygen.

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

Viral classification and biology has been challenging; presently,most biologists agree that viruses

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.

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

Microscopic examination can often resolve questions in taxonomy; for example,cells that possess a nucleus are never classified as

Like any disease or parasite,viruses need to reach new hosts to extend the infective cycle,which explains why such a large number of viral infections are associated with the

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

Photo Synthesis 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

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