Question 1

The current classification system used by biologists is

Accepted Answer

A) complex and unchanging. 
B) universally accepted by all biologists. 
C) based on four generalized types of living organisms: the Bacteria, the Archaea, the Eukarya, and the Protista. 
D) updated and revised whenever new information becomes available. 
A) complex and unchanging. 
B) universally accepted by all biologists. 
C) based on four generalized types of living organisms: the Bacteria, the Archaea, the Eukarya, and the Protista. 
D) updated and revised whenever new information becomes available.

Question 2

Classification systems are continually revised as new information becomes available from various sources such as

Accepted Answer

A) better understanding of the details of physiological processes. 
B) using DNA analysis to compare nonstructural features of different organisms. 
C) the continued evolution of current Earth species. 
D) the identification of alien species that have reached Earth via meteorites and comets. 
A) better understanding of the details of physiological processes. 
B) using DNA analysis to compare nonstructural features of different organisms. 
C) the continued evolution of current Earth species. 
D) the identification of alien species that have reached Earth via meteorites and comets.

Question 3

The infective strategy seen in the retroviruses involves _____ 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) all of the above 
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) all of the above

Question 4

During nitrogen fixation, bacteria convert toxic ammonia into atmospheric nitrogen.

Accepted Answer

A) True 
 B)False

Question 5

To produce an evolutionary tree it is necessary to first determine

Accepted Answer

A) which organisms are the oldest. 
B) the full DNA sequence of each organism that will be included within the tree. 
C) the shared derived features present within each group of organisms. 
D) the number of lineages in each group. 
A) which organisms are the oldest. 
B) the full DNA sequence of each organism that will be included within the tree. 
C) the shared derived features present within each group of organisms. 
D) the number of lineages in each group.

Question 6

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

Accepted Answer

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

Question 7

Protists are part of the domain Bacteria.

Accepted Answer

A) True 
 B)False

Question 8

The broadest classification category currently used by most biologists is the domain.

Accepted Answer

A) True 
 B)False

Question 9

Bacteria, protists, and fungi belong to the domain Archaea.

Accepted Answer

A) True 
 B)False

Question 10

In taxonomy, individuals belonging of the same class would also belong to the same

Accepted Answer

A) species. 
B) genus. 
C) order. 
D) none of the above 
A) species. 
B) genus. 
C) order. 
D) none of the above

Question 11

Recent studies on the effects of antibiotics on the normal intestinal microbial flora confirm previous views that these medications are entirely harmless to humans.

Accepted Answer

A) True 
 B)False

Question 12

The emergence of each new branch on the evolutionary tree represents

Accepted Answer

A) the addition of a new Linnaean taxon within that lineage. 
B) the completion of a generation for that particular organism. 
C) the introduction of the most important features of a group. 
D) a common ancestor and the introduction of a new shared derived feature. 
A) the addition of a new Linnaean taxon within that lineage. 
B) the completion of a generation for that particular organism. 
C) the introduction of the most important features of a group. 
D) a common ancestor and the introduction of a new shared derived feature.

Question 13

The figure below shows a bacterium dividing by binary fission; because the process is asexual you would expect the DNA in each daughter cell to be ____________________.

Accepted Answer

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

Question 14

There are currently three recognized domains; which of the following is not included within this taxon?

Accepted Answer

A) Archaea 
B) Bacteria 
C) Procarya 
D) Eukarya 
A) Archaea 
B) Bacteria 
C) Procarya 
D) Eukarya

Question 15

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 16

Which of the following taxa in the Linnaean hierarchy has the greatest total number of species?

Accepted Answer

A) phylum 
B) order 
C) family 
D) class 
A) phylum 
B) order 
C) family 
D) class

Question 17

Bacteria can be distinguished from most other organisms because

Accepted Answer

A) bacterial cells have membrane-bound organelles. 
B) bacterial DNA is not located within an organelle. 
C) bacteria reproduce by splitting in two. 
D) bacteria are generally single-celled. 
A) bacterial cells have membrane-bound organelles. 
B) bacterial DNA is not located within an organelle. 
C) bacteria reproduce by splitting in two. 
D) bacteria are generally single-celled.

Question 18

Prokaryotes obtain their nutrition in a variety of ways; all of the following methods except _____ have been observed.

Accepted Answer

A) consuming other organisms 
B) acquiring carbon from nonliving sources 
C) using noncarbon-based nutritional systems 
D) photosynthesis 
A) consuming other organisms 
B) acquiring carbon from nonliving sources 
C) using noncarbon-based nutritional systems 
D) photosynthesis

Question 19

The science of biological classification is used to

Accepted Answer

A) predict an organism's future evolution. 
B) decide when an organism died. 
C) show relationships among organisms. 
D) decipher an organism's DNA. 
A) predict an organism's future evolution. 
B) decide when an organism died. 
C) show relationships among organisms. 
D) decipher an organism's DNA.

Question 20

What aspect of the viral life cycle depicted in the illustration below explains the pathology associated with a viral infection?

Accepted Answer

A) Infected cells produce new virus particles rather than the proteins associated with normal cell activity and homeostasis. 
B) Newly replicated virus particles are released by budding, a process that depletes the cell membrane. 
C) The immune response to the presence of viral protein may be extremely intense. 
D) Retroviral insertion of DNA causes immediate cell death. 
A) Infected cells produce new virus particles rather than the proteins associated with normal cell activity and homeostasis. 
B) Newly replicated virus particles are released by budding, a process that depletes the cell membrane. 
C) The immune response to the presence of viral protein may be extremely intense. 
D) Retroviral insertion of DNA causes immediate cell death.

Exam 2: Biological Diversity, Bacteria, and Archaea

The current classification system used by biologists is

Classification systems are continually revised as new information becomes available from various sources such as

The infective strategy seen in the retroviruses involves _____ the host cell.

During nitrogen fixation, bacteria convert toxic ammonia into atmospheric nitrogen.

To produce an evolutionary tree it is necessary to first determine

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

Protists are part of the domain Bacteria.

The broadest classification category currently used by most biologists is the domain.

Bacteria, protists, and fungi belong to the domain Archaea.

In taxonomy, individuals belonging of the same class would also belong to the same

Recent studies on the effects of antibiotics on the normal intestinal microbial flora confirm previous views that these medications are entirely harmless to humans.

The emergence of each new branch on the evolutionary tree represents

The figure below shows a bacterium dividing by binary fission; because the process is asexual you would expect the DNA in each daughter cell to be ____________________.

There are currently three recognized domains; which of the following is not included within this taxon?

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

Which of the following taxa in the Linnaean hierarchy has the greatest total number of species?

Bacteria can be distinguished from most other organisms because

Prokaryotes obtain their nutrition in a variety of ways; all of the following methods except _____ have been observed.

The science of biological classification is used to

What aspect of the viral life cycle depicted in the illustration below explains the pathology associated with a viral infection?

The Nature of Science and the Characteristics of Life

Protista, Plantae, and Fungi

Animalia

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Stem Cells, Cancer, and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

Dna and Genes

From Gene to Protein

Dna Technology

How Evolution Works

Evolution of Populations

Speciation and the Origins of Biological Diversity

The Evolutionary History of Life

The Biosphere

Growth of Populations

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

Defenses Against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

Filters