Question 1

A key characteristic of echinoderms is ________.

Accepted Answer

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

Question 2

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

Accepted Answer

A)  asymmetrical
B)  bilateral
C)  fourfold symmetrical
D)  fivefold symmetrical D

Question 3

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

Accepted Answer

A)  Gibbons
B)  Lemurs
C)  Old World monkeys
D)  New World monkeys B

Question 4

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 buoyancy

Question 5

Which phylum is most closely related to the arthropods?

Accepted Answer

A)  The mollusks
B)  The echinoderms
C)  The roundworms
D)  The annelids

Question 6

Birds are a type of reptile.

Accepted Answer

A) True 
 B)False

Question 7

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 ago

Question 8

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 share

Question 9

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.

Question 10

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

The answer of Which evolved first, plants or animals? What...

Question 11

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 symmetry

Question 12

Roundworms are more closely related to arthropods than to flatworms.

Accepted Answer

A) True 
 B)False

Question 13

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.

Question 14

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 legs

Question 15

Mollusks are more closely related to flatworms than to roundworms.

Accepted Answer

A) True 
 B)False

Question 16

Which subgroup of mammals raises their young in pouches?

Accepted Answer

A)  Marsupials
B)  Monotremes
C)  Eutherians
D)  Cetaceans

Question 17

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.

Question 18

Which worm phylum lacks body segmentation?

Accepted Answer

A)  Flatworms
B)  Annelids
C)  Roundworms
D)  Both flatworms and roundworms

Question 19

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 phyla

Question 20

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.

Exam 10: Biodiversity 3: Animals

A key characteristic of echinoderms is ________.

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

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

What is the function of the lateral line system?

Which phylum is most closely related to the arthropods?

Birds are a type of reptile.

The first animals evolved ________.

What do sponges and cnidarians have in common?

What is the main difference between monotremes and eutherians?

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.

Why are echinoderms and chordates closely related?

Roundworms are more closely related to arthropods than to flatworms.

Which of the following best describes mollusks?

Which arthropod subgroup includes animals with six legs?

Mollusks are more closely related to flatworms than to roundworms.

Which subgroup of mammals raises their young in pouches?

Which statement is most accurate when describing human evolution?

Which worm phylum lacks body segmentation?

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

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