Question 1

Chondrichthyes includes

Accepted Answer

A)   lampreys.
B)   whales.
C)   all fishes.
D)   sharks.
E)   frogs.

Question 2

In sharks and rays, the skeleton is made of__________ .

Accepted Answer

The answer of In sharks and rays, the skeleton is...

Question 3

The characteristic that separates cartilaginous fishes from lampreys is

Accepted Answer

A)   lungs supplemented by air sacs.
B)   four-chambered hearts.
C)   jaws.
D)   bony skeletons.
E)   sucker-like mouths lined with teeth.

Question 4

In all chordates, the notochord

Accepted Answer

A)   may or may not appear at all; it is not found in all chordates.
B)   appears only in adults.
C)   appears only during early stages of development.
D)   appears at least during early stages of development.
E)   is found throughout the life cycle.

Question 5

Birds are feathered reptiles.

Accepted Answer

A) True 
 B)False

Question 6

Craniates have skulls made of either bone or cartilage.

Accepted Answer

A) True 
 B)False  True

Question 7

How do monotremes differ from other mammals?

Accepted Answer

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

Question 8

Cartilaginous fishes have internal fertilization.

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

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

Question 10

Animals that have a ventral nerve cord during embryonic development are classified as chordates.

Accepted Answer

A) True 
 B)False  False

Question 11

Adult tunicates have lost two embryonic features: the tail and the __________.

Accepted Answer

The answer of Adult tunicates have lost two embryonic features:...

Question 12

Lampreys differ from other vertebrates because they lack

Accepted Answer

A)   skulls.
B)   jaws.
C)   metabolism.
D)   gills.
E)   hearts.

Question 13

What characteristic of hagfishes differentiates them from lancelets and tunicates?

Accepted Answer

A)   Bony jaws
B)   Skull surrounding the brain
C)   Gills
D)   Dorsal nerve cord
E)   Post-anal tail

Question 14

Why donʹt reptilian embryos dry out in a desert habitat?

Accepted Answer

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

Question 15

Which of the following features is absent in lancelets?

Accepted Answer

A)   Notochord
B)   Gill slits
C)   Backbone
D)   Tail
E)   Nerve cord

Question 16

Larval sea squirts

Accepted Answer

A)   lack a notochord.
B)   live in fresh water.
C)   are sessile.
D)   display all four chordate characteristics.
E)   have a brain encased in bone. D

Question 17

Cartilaginous fishes differ from lampreys because they

Accepted Answer

A)   have a three-chambered heart.
B)   lack a skeleton.
C)   are ectotherms.
D)   have jaws.
E)   lack a skull.

Question 18

Salamanders are the only vertebrate capable of regenerating lost limbs.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following best describes which chordate characteristics lancelets retain as adults?

Accepted Answer

A)   Notochord, dorsal nerve cord, post-anal tail, and pharyngeal gill slits
B)   Dorsal nerve cord, jaws, limbs, and lobed fins
C)   Pharyngeal gill slits, limbs, and lobed fins
D)   Post-anal tail, hair, jaws, and amniotic egg
E)   Notochord, lobed fins, and jaws

Question 20

The __________is a stiff, flexible rod that, at some point during the development of all chordates, extends along the length of the body, sandwiched between the digestive tract and the nerve cord.

Accepted Answer

The answer of The __________is a stiff, flexible rod that,...

Exam 25: Animal Diversity Ii: Vertebrates

Chondrichthyes includes

Correct AnswerverifiedShow Answer

In sharks and rays, the skeleton is made of__________ .

Correct AnswerverifiedShow Answer

The characteristic that separates cartilaginous fishes from lampreys is

Correct AnswerverifiedShow Answer

In all chordates, the notochord

Correct AnswerverifiedShow Answer

Birds are feathered reptiles.

Correct AnswerverifiedShow Answer

Craniates have skulls made of either bone or cartilage.

Correct AnswerverifiedTrue

How do monotremes differ from other mammals?

Correct AnswerverifiedShow Answer

Cartilaginous fishes have internal fertilization.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Animals that have a ventral nerve cord during embryonic development are classified as chordates.

Correct AnswerverifiedFalse

Adult tunicates have lost two embryonic features: the tail and the __________.

Correct AnswerverifiedShow Answer

Lampreys differ from other vertebrates because they lack

Correct AnswerverifiedShow Answer

What characteristic of hagfishes differentiates them from lancelets and tunicates?

Correct AnswerverifiedShow Answer

Why donʹt reptilian embryos dry out in a desert habitat?

Correct AnswerverifiedShow Answer

Which of the following features is absent in lancelets?

Correct AnswerverifiedShow Answer

Larval sea squirts

Correct AnswerverifiedD

Cartilaginous fishes differ from lampreys because they

Correct AnswerverifiedShow Answer

Salamanders are the only vertebrate capable of regenerating lost limbs.

Correct AnswerverifiedShow Answer

Which of the following best describes which chordate characteristics lancelets retain as adults?

Correct AnswerverifiedShow Answer

The __________is a stiff, flexible rod that, at some point during the development of all chordates, extends along the length of the body, sandwiched between the digestive tract and the nerve cord.

Correct AnswerverifiedShow Answer

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True

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False

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D

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