Question 1

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

Question 2

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

Accepted Answer

A) coelacanths. 
B) therapsids. 
C) lampreys. 
D) archaeopteryx. 
A) coelacanths. 
B) therapsids. 
C) lampreys. 
D) archaeopteryx.

Question 3

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

Question 4

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) coelom 
A) radial symmetry 
B) segmentation 
C) extreme cephalization 
D) closed circulation 
E) coelom

Question 5

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. 
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.

Question 6

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 egg 
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 egg

Question 7

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. 
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.

Question 8

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

Question 9

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 limbs 
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 limbs

Question 10

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; notochord 
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; notochord

Question 11

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

Question 12

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. 
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.

Question 13

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. 
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.

Question 14

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

Accepted Answer

A) mammals; Carboniferous 
B) fish; Devonian 
C) echinoderms; Cambrian 
D) amphibians; Permian 
A) mammals; Carboniferous 
B) fish; Devonian 
C) echinoderms; Cambrian 
D) amphibians; Permian

Question 15

Vertebrates without jaws would be the

Accepted Answer

A) rays. 
B) turtles. 
C) lampreys. 
D) eels. 
A) rays. 
B) turtles. 
C) lampreys. 
D) eels.

Question 16

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

Question 17

The most successful mammals belong to the marsupials group.

Accepted Answer

A) True 
 B)False

Question 18

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. 
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.

Question 19

All of the following are characteristics of vertebrates EXCEPT

Accepted Answer

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

Question 20

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. 
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.

Exam 29: Vertebrate Evolution

Which of these characteristics is NOT found in the amphibians?

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

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

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

Characteristics of birds include all of the following EXCEPT

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

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

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

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

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

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

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

All of the following statements concerning birds are true EXCEPT

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

Vertebrates without jaws would be the

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

The most successful mammals belong to the marsupials group.

Generally the respiratory system in birds

All of the following are characteristics of vertebrates EXCEPT

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

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

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