Question 1

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) C) and D)
F) B) and D) D

Question 2

Which of the following groups of chordates would be most impacted by a decrease in the phytoplankton levels in the ocean?

Accepted Answer

A)  cephalochordates & urochordates
B)  cartilaginous fish & cephalochordates
C)  amphibians & urochodrates
D)  molluscs & cephalochordatesE) None of the above
F) A) and B)

Question 3

Which of the following statements best describes the jawless fishes?

Accepted Answer

A)  Ectotherms that have a bony skeleton.
B)  Ectotherms that have a smooth nonscaly skin.
C)  Endotherms that have a smooth nonscaly skin.
D)  Vertebrates that have scales and are ectothermic.E) A) and C)
F) A) and B)

Question 4

All chordates are also vertebrates.

Accepted Answer

A) True 
 B)False

Question 5

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

Question 6

The duckbill platypus is different than most mammals because it

Accepted Answer

A)  lacks hair.
B)  is "cold-blooded."
C)  doesn't secrete milk.
D)  doesn't give birth,but lays eggs.
E)  All of the choices are correct.F) A) and B)
G) All of the above

Question 7

Which of the following groups had made their appearance during the Ordovician period?

Accepted Answer

A)  Jawless and jawed fish.
B)  Jawed fish and amphibians.
C)  Amphibians and reptiles.
D)  Reptiles and mammals.
E)  All of these groups had appeared by the Ordovician period.F) A) and B)
G) A) and C) A

Question 8

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)  none of the aboveF) A) and D)
G) D) and E)

Question 9

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) B) and C)
G) C) and D)

Question 10

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) B) and D)
F) B) and C)

Question 11

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 E)
G) B) and E)

Question 12

Which of the following reptilian features enabled them to adapt to a terrestrial environment?

Accepted Answer

A)  A dry skin,ectothermy and external fertilization
B)  Two pairs of paired limbs,a septum that divides the ventricle,and well developed kidneys
C)  Skin that allows for respiration,a septum that divides the ventricle and an amniotic egg
D)  Efficient respiration,ectothermy and external fertilization
E)  Live birth,efficient excretion and two pairs of limbsF) A) and B)
G) All of the above

Question 13

Amphibians were the dominant animal life during the ________ period.

Accepted Answer

A)  Jurassic
B)  Carboniferous
C)  Devonian
D)  Silurian
E)  CambrianF) B) and E)
G) A) and E)

Question 14

Predacious meat eaters with large and conical-shaped canines are

Accepted Answer

A)  cetaceans.
B)  chiroptera.
C)  carnivores.
D)  proboscidea.E) A) and D)
F) None of the above

Question 15

______ 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) All of the above
F) C) and D)

Question 16

Which of these characteristics first developed in reptiles?

Accepted Answer

A)  amniotic egg
B)  scales on skin
C)  four-legged body
D)  skull and vertebral column
E)  animals living completely on landF) A) and B)
G) A) and C)

Question 17

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

Question 18

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 scales.E) All of the above
F) A) and D) C

Question 19

The mammalian lineages include

Accepted Answer

A)  placental mammals.
B)  marsupials.
C)  monotremes.
D)  All of the above are correct.
E)  None of the above are correct.F) C) and E)
G) A) and E)

Question 20

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

Exam 29: Vertebrate Evolution

The following are differences between amphibians and reptiles EXCEPT

Correct AnswerverifiedD

Which of the following groups of chordates would be most impacted by a decrease in the phytoplankton levels in the ocean?

Correct AnswerverifiedShow Answer

Which of the following statements best describes the jawless fishes?

Correct AnswerverifiedShow Answer

All chordates are also vertebrates.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The duckbill platypus is different than most mammals because it

Correct AnswerverifiedShow Answer

Which of the following groups had made their appearance during the Ordovician period?

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

The four defining characteristics of chordates are

Correct AnswerverifiedShow Answer

Mammals are different from birds in all these characteristics EXCEPT

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following reptilian features enabled them to adapt to a terrestrial environment?

Correct AnswerverifiedShow Answer

Amphibians were the dominant animal life during the ________ period.

Correct AnswerverifiedShow Answer

Predacious meat eaters with large and conical-shaped canines are

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of these characteristics first developed in reptiles?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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The mammalian lineages include

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The position of mammals in evolution is best described as

Correct AnswerverifiedShow Answer

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D

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A

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

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

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C

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