Question 1

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.E) B) and D)
F) None of the above

Question 2

Which of the following investigations would be the least likely to provide useful information about the relationships within the kingdom Animalia?

Accepted Answer

A)   which developmental sequences occur during embryonic growth
B)   an examination of the construction of the cell membrane
C)   a comparative examination of the proteins used in photosynthesis
D)   in what way various organs and organ systems have become modified over timeE) B) and C)
F) None of the above

Question 3

The earliest lineage of organisms living today are the _______.

Accepted Answer

The answer of The earliest lineage of organisms living today...

Question 4

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 organism: the Bacteria, the Archaea, the Eukarya, and the Protista.
D)   updated and revised whenever new information becomes available.E) B) and D)
F) C) and D)

Question 5

Lichens are formed by an association between

Accepted Answer

A)   algae and plants.
B)   fungi and plants.
C)   algae and fungi.
D)   protists and algae.E) C) and D)
F) A) and C)

Question 6

The kingdom Plantae consists of four major groups; the _____ are believed to have been the first to appear.

Accepted Answer

A)   angiosperms
B)   gymnosperm
C)   ferns
D)   mossesE) A) and C)
F) All of the above

Question 7

The kingdom Protista is quite diverse and the relationship between its various members is unclear. The best method of clarifying those relationships will require that biologists

Accepted Answer

A)   remove the kingdom from Eukarya and place it in its own domain.
B)   match each of the protist traits with the corresponding animal trait of the common ancestor.
C)   separate the eukaryotic protists from the prokaryotic protists.
D)   create an evolutionary tree for the group using comparative DNA data.E) A) and B)
F) A) and C)

Question 8

What capability did the development of a vascular system provide?

Accepted Answer

A)   greater efficiency at capturing the energy from sunlight
B)   greater efficiency for nutrient transport and structural support
C)   permitted plant life to establish on land
D)   allowed the developing embryo to remain protected until better growth conditions were availableE) All of the above
F) B) and C)

Question 9

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.E) A) and C)
F) A) and D)

Question 10

Although seeming quite distinct, cotton, morphine, and flour are all obtained from flowering plants, otherwise known as __________

Accepted Answer

The answer of Although seeming quite distinct, cotton, morphine, and...

Question 11

Which of the following is not one of the three major ways of classifying organisms?

Accepted Answer

A)   the Linnaean hierarchy
B)   the Darwinian hierarchy
C)   domains
D)   an evolutionary treeE) All of the above
F) A) and B)

Question 12

The group with the greatest diversity in the ways it obtains carbon and energy is

Accepted Answer

A)   the Fungi.
B)   the Animalia.
C)   the prokaryotes.
D)   the Plantae.E) All of the above
F) A) and D)

Question 13

Relationships among the animals having body cavities can be easily determined by examination of embryonic development; vertebrates and echinoderms are grouped together because in each

Accepted Answer

A)   the infolding that forms the body cavity eventually becomes the anus.
B)   life starts as a single fertilized cell and then becomes multicellular.
C)   the death of specific cells creates the internal hollow that eventually becomes the body cavity.
D)   the infolding that forms the body cavity eventually becomes the mouth.E) A) and C)
F) None of the above

Question 14

Which of the following groups has been the most recent to evolve?

Accepted Answer

A)   Bacteria
B)   Fungi
C)   Ciliates
D)   ArchaeaE) A) and D)
F) B) and D)

Question 15

Sponges are considered to be the most ancient of animals; although multicellular, sponges have not developed the _______ present in all other animals.

Accepted Answer

The answer of Sponges are considered to be the most...

Question 16

Mitochondria, the energy-processing organelles in eukaryotic cells, have their own DNA, separate from that of the cell's nucleus. Which of the following choices best explains the presence of mitochondria in eukaryotic cells?

Accepted Answer

A)   An ancestral prokaryote engulfed and retained a separate energy-processing prokaryotic cell.
B)   Mitochondria are formed when a eukaryotic cell undergoes fission.
C)   Mitochondria are separate organisms that fuse with eukaryotic cells in much the same fashion as algae and fungi form lichens.
D)   A prokaryote and a eukaryote fuse to form mitochondria.E) A) and D)
F) B) and C)

Question 17

Imagine the discovery of an undescribed nonphotosynthetic multicellular organism. To determine whether it is a(n)  _______, you need to examine it microscopically to determine if its _______

Accepted Answer

A)   animal or fungi; cells have cell walls.
B)   animal or plant; cells have nuclei.
C)   plant or fungi; cells have cell walls
D)   animal or fungi; cells contain DNA.E) A) and B)
F) A) and C)

Question 18

Bacteria, Archaea, and Eukarya are three _______ under the most commonly used current classification system.

Accepted Answer

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

Question 19

Protists may superficially resemble organisms in the other kingdoms; one exception is the kingdom _____, whose members do not resemble protists in any way.

Accepted Answer

A)   Bacteria
B)   Fungi
C)   Plantae
D)   Animalia.E) B) and C)
F) None of the above

Question 20

Prokaryotic genomes

Accepted Answer

A)   do not contain DNA.
B)   are relatively small, containing only DNA that is actively used.
C)   are relatively large, containing extra DNA that serves no known function.
D)   contain about four times as much DNA as eukaryotic genomes.E) None of the above
F) A) and B)

Exam 3: Major Groups of Living Organisms

Mitochondria, the energy-processing organelles in eukaryotic cells, have their own DNA, separate from that of the cell's nucleus. Which of the following choices best explains the presence of mitochondria in eukaryotic cells?

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Although seeming quite distinct, cotton, morphine, and flour are all obtained from flowering plants, otherwise known as __________

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The kingdom Protista is quite diverse and the relationship between its various members is unclear. The best method of clarifying those relationships will require that biologists

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Bacteria, Archaea, and Eukarya are three _______ under the most commonly used current classification system.

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Which of the following is not one of the three major ways of classifying organisms?

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Prokaryotic genomes

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The kingdom Plantae consists of four major groups; the _____ are believed to have been the first to appear.

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The earliest lineage of organisms living today are the _______.

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The current classification system used by biologists is

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The group with the greatest diversity in the ways it obtains carbon and energy is

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Sponges are considered to be the most ancient of animals; although multicellular, sponges have not developed the _______ present in all other animals.

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Protists may superficially resemble organisms in the other kingdoms; one exception is the kingdom _____, whose members do not resemble protists in any way.

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Which of the following groups has been the most recent to evolve?

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

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Lichens are formed by an association between

Correct AnswerverifiedShow Answer

What capability did the development of a vascular system provide?

Correct AnswerverifiedShow Answer

Which of the following investigations would be the least likely to provide useful information about the relationships within the kingdom Animalia?

Correct AnswerverifiedShow Answer

Relationships among the animals having body cavities can be easily determined by examination of embryonic development; vertebrates and echinoderms are grouped together because in each

Correct AnswerverifiedShow Answer

Imagine the discovery of an undescribed nonphotosynthetic multicellular organism. To determine whether it is a(n) _______, you need to examine it microscopically to determine if its _______

Correct AnswerverifiedShow Answer

Bacteria can be distinguished from most other organisms because

Correct AnswerverifiedShow Answer

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Imagine the discovery of an undescribed nonphotosynthetic multicellular organism. To determine whether it is a(n) _, you need to examine it microscopically to determine if its _

Correct Answer
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