Question 1

Which evolved first, plants or animals? What evidence exists for your answer? Explain your reasoning as to why one would have evolved 100 million years prior to the other.

Accepted Answer

Fossil and DNA evidence supports the hyp...

Question 2

Which statement is most accurate when describing human evolution?

Accepted Answer

A)  Humans come from chimpanzees.
B)  Humans are not related to chimpanzees evolutionarily.
C)  Humans share a common ancestor with chimpanzees.
D)  Humans are equally related to chimpanzees as to other primates.E) B) and D)
F) All of the above

Question 3

What is the function of the lateral line system?

Accepted Answer

A)  To detect movement in the surrounding water
B)  To extract oxygen from the surrounding water
C)  To protect the gills
D)  To provide buoyancyE) All of the above
F) A) and B)

Question 4

Which subgroup of mammals raises their young in pouches?

Accepted Answer

A)  Marsupials
B)  Monotremes
C)  Eutherians
D)  CetaceansE) A) and B)
F) A) and C)

Question 5

The body symmetry of adult echinoderms could best be described as ________.

Accepted Answer

A)  asymmetrical
B)  bilateral
C)  fourfold symmetrical
D)  fivefold symmetricalE) A) and B)
F) A) and C) D

Question 6

What is the main difference between monotremes and eutherians?

Accepted Answer

A)  Monotremes are ectothermic, while eutherians are endothermic.
B)  Monotremes lay eggs, while eutherians give birth to live young.
C)  Monotremes lack the mammary glands that eutherians have.
D)  Monotremes finish developing their young in a pouch, while eutherians develop young in a placenta.E) A) and B)
F) A) and C)

Question 7

Mollusks are more closely related to flatworms than to roundworms.

Accepted Answer

A) True 
 B)False

Question 8

The first animals evolved ________.

Accepted Answer

A)  6 thousand years ago
B)  60 thousand years ago
C)  600 thousand years ago
D)  600 million years agoE) A) and D)
F) None of the above

Question 9

What do sponges and cnidarians have in common?

Accepted Answer

A)  Organization of cells into tissues
B)  Mobility
C)  Symmetry
D)  None of the above are characteristics that sponges and cnidarians shareE) C) and D)
F) A) and B)

Question 10

Which of the following best describes mollusks?

Accepted Answer

A)  They have radial body symmetry and a soft body always covered with a shell.
B)  They are bilaterally symmetrical and have a soft body always covered with a shell.
C)  They have radial body symmetry and a soft body sometimes covered with a shell.
D)  They are bilaterally symmetrical and have a soft body sometimes covered with a shell.E) All of the above
F) B) and D)

Question 11

Which arthropod subgroup includes animals with six legs?

Accepted Answer

A)  Arachnids
B)  Crustaceans
C)  Insects
D)  All of the above include animals with six legsE) None of the above
F) A) and B)

Question 12

Why are echinoderms and chordates closely related?

Accepted Answer

A)  Because they look similar
B)  Because they share adaptations that other phyla do not have
C)  Because they are often found together as fossils
D)  Because they have the same type of body symmetryE) C) and D)
F) None of the above

Question 13

A key characteristic of echinoderms is ________.

Accepted Answer

A)  their endoskeleton
B)  their foot and mantle structures
C)  their segmented body
D)  their fused appendagesE) B) and C)
F) A) and B) A

Question 14

Which of the following characteristics are shared by all worm phyla?

Accepted Answer

A)  Being heterotroph
B)  Displaying bilateral symmetry
C)  Having tissues
D)  All of the above are characteristics shared by all worm phylaE) B) and C)
F) A) and D)

Question 15

Roundworms are more closely related to arthropods than to flatworms.

Accepted Answer

A) True 
 B)False

Question 16

Birds are a type of reptile.

Accepted Answer

A) True 
 B)False

Question 17

Serial repetition of segments is a defining characteristic of which worm phylum?

Accepted Answer

A)  Flatworms
B)  Annelids
C)  Roundworms
D)  Segmentation is not a defining characteristic of any of the worm phyla.E) B) and C)
F) A) and B)

Question 18

What is the oldest (in other words, most ancient)  primate group?

Accepted Answer

A)  Gibbons
B)  Lemurs
C)  Old World monkeys
D)  New World monkeysE) All of the above
F) A) and B) B

Question 19

Which phylum is most closely related to the arthropods?

Accepted Answer

A)  The mollusks
B)  The echinoderms
C)  The roundworms
D)  The annelidsE) A) and C)
F) All of the above

Question 20

Which worm phylum lacks body segmentation?

Accepted Answer

A)  Flatworms
B)  Annelids
C)  Roundworms
D)  Both flatworms and roundwormsE) None of the above
F) A) and B)

Exam 10: Biodiversity 3: Animals

Which evolved first, plants or animals? What evidence exists for your answer? Explain your reasoning as to why one would have evolved 100 million years prior to the other.

Correct AnswerverifiedFossil and DNA evidence supports the hyp...View AnswerShow Answer

Which statement is most accurate when describing human evolution?

Correct AnswerverifiedShow Answer

What is the function of the lateral line system?

Correct AnswerverifiedShow Answer

Which subgroup of mammals raises their young in pouches?

Correct AnswerverifiedShow Answer

The body symmetry of adult echinoderms could best be described as ________.

Correct AnswerverifiedD

What is the main difference between monotremes and eutherians?

Correct AnswerverifiedShow Answer

Mollusks are more closely related to flatworms than to roundworms.

Correct AnswerverifiedShow Answer

The first animals evolved ________.

Correct AnswerverifiedShow Answer

What do sponges and cnidarians have in common?

Correct AnswerverifiedShow Answer

Which of the following best describes mollusks?

Correct AnswerverifiedShow Answer

Which arthropod subgroup includes animals with six legs?

Correct AnswerverifiedShow Answer

Why are echinoderms and chordates closely related?

Correct AnswerverifiedShow Answer

A key characteristic of echinoderms is ________.

Correct AnswerverifiedA

Which of the following characteristics are shared by all worm phyla?

Correct AnswerverifiedShow Answer

Roundworms are more closely related to arthropods than to flatworms.

Correct AnswerverifiedShow Answer

Birds are a type of reptile.

Correct AnswerverifiedShow Answer

Serial repetition of segments is a defining characteristic of which worm phylum?

Correct AnswerverifiedShow Answer

What is the oldest (in other words, most ancient) primate group?

Correct AnswerverifiedB

Which phylum is most closely related to the arthropods?

Correct AnswerverifiedShow Answer

Which worm phylum lacks body segmentation?

Correct AnswerverifiedShow Answer

Correct Answer
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D

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A

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