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 C)
G) None of the above

Question 2

The jawed fish and all other vertebrates are gnathostomes,which means they have

Accepted Answer

A)  segmentation.
B)  jaws.
C)  a notochord that develops into a vertebral column.
D)  amniotic eggs.
E)  exoskeletonsF) A) and C)
G) B) and C)

Question 3

The four defining characteristics of chordates are

Accepted Answer

A)  segmentation,a dorsal hollow nerve cord,pharyngeal pouches,and an amniotic egg.
B)  a dorsal hollow nerve cord,a notochord,bilateral symmetry,and mammary glands.
C)  bilateral symmetry,segmentation,a well-developed coelom,and limbs.
D)  a well-developed coelom,pharyngeal pouches,a notochord,and jaws.
E)  pharyngeal pouches,a dorsal nerve cord,a notochord,and a postanal tail.F) A) and B)
G) B) and E)

Question 4

During the course of fish evolution,two of the gill arches evolved into ________.

Accepted Answer

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

Question 5

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) A) and D)
F) None of the above

Question 6

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 D)
G) C) and D)

Question 7

Amongst the chordates,which features are unique to the tunicates?

Accepted Answer

A)  leathery outer covering and an excurrent siphon
B)  gill slits and bilateral symmetry
C)  sexual reproduction and complete digestive system
D)  sessile adult stage and aquatic lifestyle
E)  leathery outer covering and sessile adult stageF) B) and C)
G) None of the above

Question 8

The most successful mammals belong to the marsupials group.

Accepted Answer

A) True 
 B)False

Question 9

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) A) and D)
F) None of the above

Question 10

Most salamanders practice internal fertilization

Accepted Answer

A)  using spermatophores.
B)  externally in water.
C)  internally by copulation.
D)  just like frogs.E) A) and D)
F) C) and D)

Question 11

Ancestral lobe-finned fishes gave rise to modern-day lobe-finned fishes,the lungfishes,and to the amphibians.

Accepted Answer

A) True 
 B)False

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

Question 13

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) All of the above
G) D) and E)

Question 14

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

Accepted Answer

A)  coelacanths.
B)  therapsids.
C)  lampreys.
D)  archaeopteryx.E) B) and C)
F) All of the above

Question 15

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 D)
G) C) and D)

Question 16

Which of the following groups are considered chordates but are lacking the vertebral column trait?

Accepted Answer

A)  osteichthyes & urochordata
B)  urochordata & cephalochordates
C)  cephalochordates & chondrichthyes
D)  sea squirts & chondrichthyesE) C) and D)
F) All of the above

Question 17

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 or bony endoskeleton,gills and scales
D)  bony exoskeleton,gills and scalesE) A) and D)
F) B) and C)

Exam 29: Vertebrate Evolution

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

Correct Answer
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Most salamanders practice internal fertilization

Correct Answer
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During the course of fish evolution,two of the gill arches evolved into ________.

Correct Answer
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The four defining characteristics of chordates are

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

The most successful mammals belong to the marsupials group.

Correct Answer
verified

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

Correct Answer
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Amongst the chordates,which features are unique to the tunicates?

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

Correct Answer
verified

The jawed fish and all other vertebrates are gnathostomes,which means they have

Correct Answer
verified

The following are differences between amphibians and reptiles EXCEPT

Correct Answer
verified

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

Correct Answer
verified

Which of the following groups are considered chordates but are lacking the vertebral column trait?

Correct Answer
verified

Ancestral lobe-finned fishes gave rise to modern-day lobe-finned fishes,the lungfishes,and to the amphibians.

Correct Answer
verified

Exam 29: Vertebrate Evolution

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

Correct AnswerverifiedShow Answer

Most salamanders practice internal fertilization

Correct AnswerverifiedShow Answer

During the course of fish evolution,two of the gill arches evolved into ________.

Correct AnswerverifiedShow Answer

The four defining characteristics of chordates are

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The most successful mammals belong to the marsupials group.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Amongst the chordates,which features are unique to the tunicates?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The jawed fish and all other vertebrates are gnathostomes,which means they have

Correct AnswerverifiedShow Answer

The following are differences between amphibians and reptiles EXCEPT

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following groups are considered chordates but are lacking the vertebral column trait?

Correct AnswerverifiedShow Answer

Ancestral lobe-finned fishes gave rise to modern-day lobe-finned fishes,the lungfishes,and to the amphibians.

Correct AnswerverifiedShow Answer

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

Correct Answer
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