Question 1

The first four-legged vertebrates were reptiles.

Accepted Answer

A) True 
 B)False  False

Question 2

Chordates include only animals that are vertebrates.

Accepted Answer

A) True 
 B)False

Question 3

Sponges belong to the phylum:

Accepted Answer

A)  Porifera
B)  Cnidaria
C)  Platyhelminthes
D)  Nematoda
E)  AnnelidaF) B) and D)
G) B) and C)

Question 4

In the fossil record there is evidence that feathers were produced by which of the following?

Accepted Answer

A)  Birds
B)  Dinosaurs
C)  Birds and some dinosaurs
D)  Birds and some mammals
E)  MammalsF) A) and E)
G) B) and D)

Question 5

An animal whose body temperature tends to fluctuate with the external environment is a(an) :

Accepted Answer

A)  Thermophile
B)  Mesophile
C)  Amniote
D)  Endotherm
E)  EctothermF) None of the above
G) C) and D)

Question 6

Which of the following is not a characteristic shared by animals?

Accepted Answer

A)  They form a dikaryotic cell during development
B)  They have a developmental stage called a blastula
C)  They are multi-cellular eukaryotes
D)  They are heterotrophs
E)  They secrete and bind to a substance called the extracellular matrixF) A) and E)
G) None of the above

Question 7

Najash is an extinct snake that had hindlimbs and a pelvis.Which of the following is the best explanation for this observation?

Accepted Answer

A)  This is a transitional fossil, and the species has not yet lost its hindlimb bones
B)  This is a transitional fossil, and the species has not yet gained its forelimb bones
C)  This is common ancestor to all of the modern species of lizards that do not have hindlimbs
D)  This is common ancestor to all of the modern snake species that have hindlimbs
E)  This species was an evolutionary dead end, which is why no modern snake species have functional hindlimbsF) C) and D)
G) B) and E)

Question 8

The forelimbs of Tiktaalik have bones,but are fringed with fins instead of toes (Fig.20.57) .Which of the following is the best explanation for this observation?

Accepted Answer

A)  This is a transitional fossil, and the species has not yet lost its arm bones
B)  This is a common ancestor to all of the modern fish species that have bones in their forelimbs
C)  This is a common ancestor to all of the modern amphibian species that have fins on their forelimb
D)  This is a transitional fossil, and the species has not yet lost its fins
E)  This species was an evolutionary dead end, which is why no modern species have both bones and fins on their forelimbsF) None of the above
G) A) and D) D

Question 9

The only surviving member of the lobe-finned fishes is the:

Accepted Answer

A)  Coelacanth
B)  Lamprey
C)  Eel
D)  Lungfish
E)  RayF) C) and D)
G) B) and C)

Question 10

An internal membrane in chordates that protects the developing fetus is the notochord.

Accepted Answer

A) True 
 B)False

Question 11

What advantage might Tiktaalik have by moving from water to land?

Accepted Answer

A)  It could avoid predation by other species
B)  It could avoid competition with other species
C)  It could avoid predation and competition with other species
D)  It could move to a dry habitat that was easier to live in
E)  It could move to a dry habitat that was easier to live in, and avoid predation by other speciesF) C) and D)
G) C) and E)

Question 12

The first four-legged vertebrates were:

Accepted Answer

A)  Amphibians
B)  Reptiles
C)  Tortoises
D)  Lampreys
E)  LungfishF) All of the above
G) B) and C)

Question 13

Which of the following is not a characteristic of an amphibian?

Accepted Answer

A)  They do not have an amnion
B)  They have a cartilaginous skeleton
C)  They are ectothermic
D)  They have a three-chambered heart
E)  They have vertebraeF) A) and C)
G) D) and E)

Question 14

Mollusks that have two-part hinged shells are called bivalves.

Accepted Answer

A) True 
 B)False  True

Question 15

Which of the following is not an example of a mammal?

Accepted Answer

A)  Dolphin
B)  Platypus
C)  Kangaroo
D)  Penguin
E)  WhaleF) A) and E)
G) A) and D)

Question 16

Cnidarian's bodies can take either of two forms.A polyp consists of a sessile stalk with tentacles on one end,whereas a medusa is a free-swimming,bell-shaped,"tentacles-down" body form with a single opening forming the mouth.Which of the following is true of a Cnidarian?

Accepted Answer

A)  It has cephalization
B)  It goes through direct development
C)  It has an incomplete digestive tract and cephalization
D)  It has an incomplete digestive tract
E)  It goes through indirect development and has cephalizationF) C) and D)
G) C) and E)

Question 17

Sea cucumbers belong to the plant kingdom.

Accepted Answer

A) True 
 B)False

Question 18

An animal with an indirect development undergoes a metamorphosis in which larvae do not resemble the adult.

Accepted Answer

A) True 
 B)False

Question 19

Birds are endothermic,feathered reptiles,

Accepted Answer

A) True 
 B)False

Question 20

The embryonic germ layer of tissue in animals that develops into the digestive tract and organs derived from the digestive tract is the:

Accepted Answer

A)  Pachyderm
B)  Ectoderm
C)  Mesoderm
D)  Endoderm
E)  ProtodermF) A) and C)
G) C) and D)

Exam 20: Animals

The first four-legged vertebrates were reptiles.

Correct AnswerverifiedFalse

Chordates include only animals that are vertebrates.

Correct AnswerverifiedShow Answer

Sponges belong to the phylum:

Correct AnswerverifiedShow Answer

In the fossil record there is evidence that feathers were produced by which of the following?

Correct AnswerverifiedShow Answer

An animal whose body temperature tends to fluctuate with the external environment is a(an) :

Correct AnswerverifiedShow Answer

Which of the following is not a characteristic shared by animals?

Correct AnswerverifiedShow Answer

Najash is an extinct snake that had hindlimbs and a pelvis.Which of the following is the best explanation for this observation?

Correct AnswerverifiedShow Answer

The forelimbs of Tiktaalik have bones,but are fringed with fins instead of toes (Fig.20.57) .Which of the following is the best explanation for this observation?

Correct AnswerverifiedD

The only surviving member of the lobe-finned fishes is the:

Correct AnswerverifiedShow Answer

An internal membrane in chordates that protects the developing fetus is the notochord.

Correct AnswerverifiedShow Answer

What advantage might Tiktaalik have by moving from water to land?

Correct AnswerverifiedShow Answer

The first four-legged vertebrates were:

Correct AnswerverifiedShow Answer

Which of the following is not a characteristic of an amphibian?

Correct AnswerverifiedShow Answer

Mollusks that have two-part hinged shells are called bivalves.

Correct AnswerverifiedTrue

Which of the following is not an example of a mammal?

Correct AnswerverifiedShow Answer

Cnidarian's bodies can take either of two forms.A polyp consists of a sessile stalk with tentacles on one end,whereas a medusa is a free-swimming,bell-shaped,"tentacles-down" body form with a single opening forming the mouth.Which of the following is true of a Cnidarian?

Correct AnswerverifiedShow Answer

Sea cucumbers belong to the plant kingdom.

Correct AnswerverifiedShow Answer

An animal with an indirect development undergoes a metamorphosis in which larvae do not resemble the adult.

Correct AnswerverifiedShow Answer

Birds are endothermic,feathered reptiles,

Correct AnswerverifiedShow Answer

The embryonic germ layer of tissue in animals that develops into the digestive tract and organs derived from the digestive tract is the:

Correct AnswerverifiedShow Answer

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False

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D

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True

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