Question 1

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 B)
G) B) and C)

Question 2

What is the main reason that mammals underwent adaptive radiation after the demise of the dinosaurs?

Accepted Answer

A)  They had to adapt in order to physically survive the ice age.
B)  The mammals had little competition so it was easier for them to evolve into the niches that were once occupied by the dinosaurs.
C)  They had an "inner need" to become better suited to their environment.
D)  None of the above.E) A) and B)
F) A) and C)

Question 3

The most successful mammals belong to the marsupials group.

Accepted Answer

A) True 
 B)False

Question 4

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 C)
G) B) and E)

Question 5

Generally the respiratory system in birds

Accepted Answer

A)  is identical to the human breathing system.
B)  is merely accelerated by the flight muscles.
C)  resembles the positive pressure system of a frog.
D)  is a one-way circulation of air so constant oxygen absorption can meet the high oxygen demand.E) C) and D)
F) None of the above

Question 6

In some chordates,the _______ is (are) replaced by ________.

Accepted Answer

A)  pharyngeal pouches; gills
B)  dorsal hollow nerve cord; a ventral solid nerve cord
C)  gill arches; pharyngeal pouches
D)  notochord; a dorsal hollow nerve cord
E)  a vertebral column; notochordF) B) and E)
G) C) and D)

Question 7

Vertebrates without jaws would be the

Accepted Answer

A)  rays.
B)  turtles.
C)  lampreys.
D)  eels.E) A) and B)
F) B) and C)

Question 8

Which of these characteristics is NOT found in the amphibians?

Accepted Answer

A)  thin moist skin
B)  two-chambered heart
C)  small inefficient lungs
D)  aquatic larvae
E)  eggs with gelatinous coveringF) A) and C)
G) B) and C)

Question 9

The mammal-like reptiles that gave rise to mammals were the

Accepted Answer

A)  coelacanths.
B)  therapsids.
C)  lampreys.
D)  archaeopteryx.E) A) and D)
F) C) and D)

Question 10

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) B) and E)
G) D) and E)

Question 11

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) C) and D)

Question 12

Which is the correct sequence for the evolution of reptilian features?

Accepted Answer

A)  notochord,vertebrae,jaws,bony skeleton,lungs,4 limbs and an amniotic egg
B)  notochord,jaws,vertebrae,bony skeleton,lungs,4 limbs and an amniotic egg
C)  notochord,vertebrae,jaws,cartilaginous skeleton,lungs,4 limbs and an amniotic egg
D)  vertebrae,jaws,notochord,bony skeleton,lungs,4 limbs and an amniotic egg
E)  notochord,vertebrae,jaws,4 limbs,bony skeleton,lungs,and an amniotic eggF) D) and E)
G) A) and E)

Question 13

Lungless salamanders lack lungs and breathe through their skins after they lose their gills.You would expect lungless salamanders to

Accepted Answer

A)  prefer drier habitats.
B)  prefer stagnant water.
C)  be larger than most salamanders.
D)  be restricted to smaller and/or thinner body plans.E) A) and B)
F) A) and C)

Question 14

All of the following statements concerning birds are true EXCEPT

Accepted Answer

A)  birds have small,relatively under-developed brains.
B)  some birds do not have the ability to fly.
C)  birds have acute vision.
D)  birds use the sun,stars,and the Earth's magnetic field to guide them.E) A) and B)
F) B) and C)

Question 15

The amphibians' common receptacle for the urinary,genital,and digestive canals is the

Accepted Answer

A)  vulva.
B)  glottis.
C)  cloaca.
D)  tympanum.
E)  operculum.F) B) and D)
G) A) and D)

Question 16

Reptiles evolved from ______ ancestors and were abundant by the ________ Period.

Accepted Answer

A)  mammals; Carboniferous
B)  fish; Devonian
C)  echinoderms; Cambrian
D)  amphibians; PermianE) C) and D)
F) None of the above

Question 17

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) A) and C)
F) A) and B)

Question 18

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 E)
G) C) and E)

Question 19

The organ of nutrition used in fetal development in the most successful mammals is the

Accepted Answer

A)  mammary gland.
B)  egg.
C)  pouch.
D)  placenta.
E)  marsupium.F) A) and C)
G) A) and E)

Question 20

Which feature is found in the bony fish but not in the cartilaginous fish?

Accepted Answer

A)  scales
B)  lateral line system for detecting prey
C)  endothermy
D)  ectothermy
E)  swim bladderF) B) and E)
G) A) and C)

Exam 29: Vertebrate Evolution

Vertebrates without jaws would be the

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The most successful mammals belong to the marsupials group.

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The organ of nutrition used in fetal development in the most successful mammals is the

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Generally the respiratory system in birds

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What is the main reason that mammals underwent adaptive radiation after the demise of the dinosaurs?

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The mammal-like reptiles that gave rise to mammals were the

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In some chordates,the _______ is (are) replaced by ________.

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All of the following are characteristics of vertebrates EXCEPT

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Lungless salamanders lack lungs and breathe through their skins after they lose their gills.You would expect lungless salamanders to

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Which of these characteristics is NOT found in the amphibians?

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The amphibians' common receptacle for the urinary,genital,and digestive canals is the

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

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Which feature is found in the bony fish but not in the cartilaginous fish?

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

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Which is the correct sequence for the evolution of reptilian features?

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All of the following statements concerning birds are true EXCEPT

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

Correct AnswerverifiedShow Answer

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

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Reptiles evolved from ______ ancestors and were abundant by the ________ Period.

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Characteristics of birds include all of the following EXCEPT

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In some chordates,the _ is (are) replaced by __.

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Reptiles evolved from ancestors and were abundant by the __ Period.

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