Question 1

Which term can be applied to all of the vertebrates except for the jawless fish?

Accepted Answer

A)   Gnathostomes
B)   Endothermic
C)   Tetrapods
D)   AmniotesE) C) and D)
F) All of the above

Question 2

Which of the following features are shared by all of the jawed fish?

Accepted Answer

A)   endothermic, gills and scales
B)   ectothermic, smooth nonscaly skin and bony skeleton
C)   cartilaginous endoskeleton, gills and scales
D)   bony endoskeleton, gills and scalesE) B) and C)
F) A) and C)

Question 3

Mammals are different from birds in all these characteristics EXCEPT

Accepted Answer

A)   hair.
B)   mammary glands.
C)   constant body temperature.
D)   young born alive.E) A) and B)
F) A) and C) C

Question 4

______ were the first vertebrates to live on land and they evolved from _____.

Accepted Answer

A)   Amphibians; fish
B)   Reptiles; amphibians
C)   Mammals; reptiles
D)   Amphibians; lanceletsE) A) and B)
F) A) and C)

Question 5

During the course of fish evolution two of the gill slits slowly evolved into ____________.

Accepted Answer

A)   gills
B)   the pectoral fins
C)   the swim bladder
D)   the jaw
E)   No answer choice is correct.F) C) and D)
G) A) and B)

Question 6

Characteristics of birds include all of the following EXCEPT

Accepted Answer

A)   aquatic reproduction.
B)   endotherms.
C)   modified reptilian scales as feathers.
D)   hard-shelled eggs.
E)   a modified skeleton with a fused collarbone and a keel.F) B) and D)
G) C) and D)

Question 7

Which of these is NOT one of the characteristics of a vertebrate?

Accepted Answer

A)   radial symmetry
B)   segmentation
C)   extreme cephalization
D)   closed circulation
E)   coelomF) A) and D)
G) C) and E)

Question 8

Vertebrates without jaws would be the

Accepted Answer

A)   rays.
B)   turtles.
C)   lampreys.
D)   eels.E) All of the above
F) A) and B)

Question 9

Monotremes

Accepted Answer

A)   are egg laying mammals.
B)   include the anteater and duck-billed platypus.
C)   nurse their young.
D)   All of the answer choices are correct.E) B) and D)
F) None of the above

Question 10

The mammalian lineages include

Accepted Answer

A)   placental mammals.
B)   marsupials.
C)   monotremes.
D)   All of the answer choices are correct.
E)   No answer choice is correct.F) B) and D)
G) A) and E)

Question 11

The position of mammals in evolution is best described as

Accepted Answer

A)   they dominate life in the sea.
B)   they were among the first animals to live on land and their diversity is greater than all living things known.
C)   they arose from mammal-like reptiles in the Jurassic but remained small and insignificant while dinosaurs dominated the land.
D)   mammals gave rise to birds.
E)   All of the choices are correct.F) All of the above
G) D) and E)

Question 12

Compare the characteristics of mammals and birds, noting the similarities and differences between the groups. Why don't we consider mammals and birds closely related with a common ancestor, since they are both "warm-blooded"?

Accepted Answer

Answers may vary. The mammals and birds do share certain traits and are thought to have evolved from an ancestral stem reptile. Both birds and mammals have similar circulatory pathways and are endotherms. While birds have feathers, which are modified scales, to keep them warm, mammals have hair. Many scientists think hair evolved from reptilian scales. There are many differences between birds and mammals. Most modern mammals do not lay eggs, as birds do. They give birth to live young and have mammary glands which secrete milk as nourishment for their young. Birds do not have either of these characteristics. Although the brains of birds are well developed, mammalian brains are much more complex and larger. Birds and mammals differ structurally in a variety of ways, like teeth, bones, and respiratory systems. The fossil record clearly reveals that birds and mammals arise from different reptilian lineages. Scientists have discovered a sequence of transitional fossil forms between the dinosaurs and birds and between the dinosaurs and the thecodonts. Fossils evidence also supports the evolution of mammals from therapsids and therapsids from pelycosaurs.

Question 13

All of the following are characteristics of vertebrates EXCEPT

Accepted Answer

A)   internal organs.
B)   vertebral columns.
C)   postanal tails.
D)   exoskeletons.
E)   skulls.F) A) and C)
G) A) and D)

Question 14

It was during the ______ period within the ______ era that chordates made their first appearance.

Accepted Answer

A)   Cambrian, Paleozoic
B)   Ordovician, Paleozoic
C)   Mesozoic, Cretaceous
D)   Paleozoic, CambrianE) None of the above
F) All of the above A

Question 15

Which of the following features were required for the the evolution of the amphibians?

Accepted Answer

A)   notochord, vertebrae, jaws, bony skeleton, lungs and 4 limbs
B)   notochord, vertebrae, jaws, bony skeleton, lungs and amniotic eggs
C)   notochord, vertebrae, jaws, cartilaginous skeleton, lungs and 4 limbs
D)   notochord, mammary glands, jaws, bony skeleton, lungs and 4 limbsE) All of the above
F) B) and D)

Question 16

The amphibians' unique contribution to the evolution of land vertebrates was

Accepted Answer

A)   respiration by gills.
B)   respiration through the skin.
C)   separation of lung/gill and systemic (body)  circulation.
D)   development of the tail for propulsion.
E)   the leathery waterproof egg shell.F) A) and E)
G) A) and D)

Question 17

Which feature would have given the jawed fish an evolutionary advantage over the jawless fish when it came time to hunt for food?

Accepted Answer

A)   The evolution of jaws from the gill slits that would enable them to bite more efficiently.
B)   The evolution of an ectothermic lifestyle so they could regulate their body temperature based upon the environment.
C)   Gills that would increase the efficiency of their breathing.
D)   A cartilaginous endoskeleton that would provide for more power while swimming.
E)   A skin that is nonscaly that also allows for an increased respiration ability.F) A) and B)
G) A) and C)

Question 18

Which of the following features are found in the lobe-finned fish but are not present in the cartilaginous fish?

Accepted Answer

A)   bony skeletons and lungs
B)   paired fins and a bony skeleton
C)   jaws and lungs
D)   vertebrae and amniotic eggsE) All of the above
F) A) and B)

Question 19

The following are differences between amphibians and reptiles EXCEPT

Accepted Answer

A)   amphibians have smooth non-scaly skin, whereas reptiles are covered with scales and their skin is dry.
B)   all reptiles respire by the use of lungs, while amphibians use small lungs supplemented by cutaneous respiration.
C)   amphibian eggs are laid in water, but reptiles do not require water for reproduction.
D)   reptiles are ectothermic, while amphibians are endothermic.E) B) and C)
F) All of the above

Question 20

If the only chordate characteristic that adult sea squirts possess are gills, why are they classified as a chordate?

Accepted Answer

Answers may vary. It is true that adult ...

Exam 29: Vertebrate Evolution

Which term can be applied to all of the vertebrates except for the jawless fish?

Correct Answer
verified

Which of the following features are shared by all of the jawed fish?

Correct Answer
verified

Mammals are different from birds in all these characteristics EXCEPT

Correct Answer
verified
C

__ were the first vertebrates to live on land and they evolved from _.

Correct Answer
verified

During the course of fish evolution two of the gill slits slowly evolved into ____________.

Correct Answer
verified

Characteristics of birds include all of the following EXCEPT

Correct Answer
verified

Which of these is NOT one of the characteristics of a vertebrate?

Correct Answer
verified

Vertebrates without jaws would be the

Correct Answer
verified

Monotremes

Correct Answer
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The mammalian lineages include

Correct Answer
verified

The position of mammals in evolution is best described as

Correct Answer
verified

Compare the characteristics of mammals and birds, noting the similarities and differences between the groups. Why don't we consider mammals and birds closely related with a common ancestor, since they are both "warm-blooded"?

All of the following are characteristics of vertebrates EXCEPT

Correct Answer
verified

It was during the period within the era that chordates made their first appearance.

Correct Answer
verified
A

Which of the following features were required for the the evolution of the amphibians?

Correct Answer
verified

The amphibians' unique contribution to the evolution of land vertebrates was

Correct Answer
verified

Which feature would have given the jawed fish an evolutionary advantage over the jawless fish when it came time to hunt for food?

Correct Answer
verified

Which of the following features are found in the lobe-finned fish but are not present in the cartilaginous fish?

Correct Answer
verified

The following are differences between amphibians and reptiles EXCEPT

Correct Answer
verified

If the only chordate characteristic that adult sea squirts possess are gills, why are they classified as a chordate?

Correct Answer
verified
Answers may vary. It is true that adult ...
View Answer

Exam 29: Vertebrate Evolution

Which term can be applied to all of the vertebrates except for the jawless fish?

Correct AnswerverifiedShow Answer

Which of the following features are shared by all of the jawed fish?

Correct AnswerverifiedShow Answer

Mammals are different from birds in all these characteristics EXCEPT

Correct AnswerverifiedC

______ were the first vertebrates to live on land and they evolved from _____.

Correct AnswerverifiedShow Answer

During the course of fish evolution two of the gill slits slowly evolved into ____________.

Correct AnswerverifiedShow Answer

Characteristics of birds include all of the following EXCEPT

Correct AnswerverifiedShow Answer

Which of these is NOT one of the characteristics of a vertebrate?

Correct AnswerverifiedShow Answer

Vertebrates without jaws would be the

Correct AnswerverifiedShow Answer

Monotremes

Correct AnswerverifiedShow Answer

The mammalian lineages include

Correct AnswerverifiedShow Answer

The position of mammals in evolution is best described as

Correct AnswerverifiedShow Answer

Compare the characteristics of mammals and birds, noting the similarities and differences between the groups. Why don't we consider mammals and birds closely related with a common ancestor, since they are both "warm-blooded"?

All of the following are characteristics of vertebrates EXCEPT

Correct AnswerverifiedShow Answer

It was during the ______ period within the ______ era that chordates made their first appearance.

Correct AnswerverifiedA

Which of the following features were required for the the evolution of the amphibians?

Correct AnswerverifiedShow Answer

The amphibians' unique contribution to the evolution of land vertebrates was

Correct AnswerverifiedShow Answer

Which feature would have given the jawed fish an evolutionary advantage over the jawless fish when it came time to hunt for food?

Correct AnswerverifiedShow Answer

Which of the following features are found in the lobe-finned fish but are not present in the cartilaginous fish?

Correct AnswerverifiedShow Answer

The following are differences between amphibians and reptiles EXCEPT

Correct AnswerverifiedShow Answer

If the only chordate characteristic that adult sea squirts possess are gills, why are they classified as a chordate?

Correct AnswerverifiedAnswers may vary. It is true that adult ...View AnswerShow Answer

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Correct Answer
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C

__ were the first vertebrates to live on land and they evolved from _.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

It was during the period within the era that chordates made their first appearance.

Correct Answer
verified
A

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified
Answers may vary. It is true that adult ...
View Answer