Question 1

All female mammals produce milk to feed their young.

Accepted Answer

A) True 
 B)False

Question 2

Fins composed of a web of skin covering thin, bony spines are characteristic of

Accepted Answer

A)   hagfishes.
B)   lampreys.
C)   cartilaginous fishes.
D)   lobe- finned fishes.
E)   ray- finned fishes.F) A) and B)
G) A) and E)

Question 3

Why don't reptilian embryos dry out in a desert habitat?

Accepted Answer

A)   Reptiles produce shelled amniotic eggs.
B)   Reptile eggs are protected by a jelly- like coating.
C)   The placenta facilitates gas exchange between the mother and the embryo.
D)   Reptiles are endothermic.
E)   Reptiles produce lots of defensive slime.F) B) and D)
G) A) and E)

Question 4

An animal without a vertebral column has an unprotected notochord.

Accepted Answer

A) True 
 B)False

Question 5

The earliest vertebrates lacked

Accepted Answer

A)   a notochord.
B)   brains.
C)   jaws.
D)   gills.
E)   skeletons.F) None of the above
G) A) and E)

Question 6

Which of the following features is absent in lancelets?

Accepted Answer

A)   Notochord
B)   Nerve cord
C)   Backbone
D)   Tail
E)   Gill slitsF) C) and D)
G) B) and C)

Question 7

What characteristic of hagfishes differentiates them from lancelets and tunicates?

Accepted Answer

A)   Bony jaws
B)   Post- anal tail
C)   Gills
D)   Skull surrounding the brain
E)   Dorsal nerve cordF) All of the above
G) B) and E)

Question 8

Which of the following is present in all chordates?

Accepted Answer

A)   A notochord
B)   An external skeleton
C)   Chloroplasts
D)   Four limbs
E)   A vertebral columnF) A) and D)
G) All of the above

Question 9

are the mammals with the greatest number of species.

Accepted Answer

A)   Rodents
B)   Whales
C)   Bats
D)   Marsupials
E)   PrimatesF) A) and B)
G) C) and D)

Question 10

An animal that has a four- chambered heart, is endothermic, and does not give birth to live offspring can be classified as a(n)

Accepted Answer

A)   mollusk.
B)   amphibian.
C)   mammal.
D)   reptile.
E)   bird.F) B) and E)
G) C) and D)

Question 11

Why have reptiles successfully adapted to land?

Accepted Answer

A)   They nurse their young.
B)   They produce eggs that resist dehydration.
C)   They are endothermic.
D)   They lack gills at any point during their development.
E)   They have a two- chambered heart to maximize oxygen utilization.F) None of the above
G) A) and B)

Question 12

The is the internal membrane of the shelled eggs of reptiles.

Accepted Answer

The answer of The is the internal membrane of the...

Question 13

Why are lampreys classified as vertebrates?

Accepted Answer

A)   They lack jaws.
B)   Their nerve cord is surrounded by cartilage.
C)   They are ectothermic.
D)   They lack gills.
E)   They have an exoskeleton.F) B) and E)
G) A) and B)

Question 14

The forms from embryonic and uterine tissues and is the site of exchange between mother and embryo.

Accepted Answer

The answer of The forms from embryonic and uterine tissues...

Question 15

How does the nerve cord of chordates differ from the nerve cord of animals in other taxonomic groups?

Accepted Answer

A)   It is surrounded by bone.
B)   It does not develop until after the embryonic period.
C)   It develops from the gill slits.
D)   It runs along the dorsal side of the body.
E)   It does not extend into the tail.F) B) and E)
G) All of the above

Question 16

Lamprey populations introduced into the Great Lakes have grown dramatically. Why?

Accepted Answer

A)   Fishers have intentionally introduced them with the hope of farming them for "eel skin."
B)   Lamprey stocking programs have been highly effective.
C)   A fish species that they naturally prey upon has recently been introduced into the Great Lakes.
D)   Competitive species have driven them from the ocean.
E)   They have no natural predators in these waters.F) A) and D)
G) B) and C)

Question 17

How do monotremes differ from other mammals?

Accepted Answer

A)   They have a four- chambered heart.
B)   They have claws.
C)   They have hair.
D)   They lay eggs.
E)   They do not produce milk.F) C) and D)
G) A) and E)

Question 18

Lampreys differ from other vertebrates because they lack

Accepted Answer

A)   metabolism.
B)   gills.
C)   jaws.
D)   hearts.
E)   skulls.F) All of the above
G) A) and B)

Question 19

The discovery of a coelacanth in South Africa in 1938 was surprising to biologists because it

Accepted Answer

A)   was a newly evolved species.
B)   represents a transition between two major groups of fishes.
C)   has not evolved for more than 80 million years.
D)   is the first species to have made the transition to land.
E)   was thought to be extinct.F) All of the above
G) A) and E)

Question 20

The are aquatic reptiles that lack a shell.

Accepted Answer

The answer of The are aquatic reptiles that lack a...

Exam 25: Animal Diversity II: Vertebrates

Why are lampreys classified as vertebrates?

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What characteristic of hagfishes differentiates them from lancelets and tunicates?

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All female mammals produce milk to feed their young.

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Fins composed of a web of skin covering thin, bony spines are characteristic of

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How does the nerve cord of chordates differ from the nerve cord of animals in other taxonomic groups?

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Lamprey populations introduced into the Great Lakes have grown dramatically. Why?

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An animal without a vertebral column has an unprotected notochord.

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An animal that has a four- chambered heart, is endothermic, and does not give birth to live offspring can be classified as a(n)

Correct AnswerverifiedShow Answer

Why have reptiles successfully adapted to land?

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The are aquatic reptiles that lack a shell.

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The is the internal membrane of the shelled eggs of reptiles.

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The forms from embryonic and uterine tissues and is the site of exchange between mother and embryo.

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How do monotremes differ from other mammals?

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Which of the following features is absent in lancelets?

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Lampreys differ from other vertebrates because they lack

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The earliest vertebrates lacked

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Which of the following is present in all chordates?

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The discovery of a coelacanth in South Africa in 1938 was surprising to biologists because it

Correct AnswerverifiedShow Answer

are the mammals with the greatest number of species.

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Why don't reptilian embryos dry out in a desert habitat?

Correct AnswerverifiedShow Answer

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