Question 1

In biology lab,you are tasked with measuring the temperature of a small lizard,as it is moved from containers with different temperature,light and humidity.The temperature fluctuates with the changes in the environment,so you also observe that the lizard's behaviors change in each container.This is an example of a(an)

Accepted Answer

A)   mesophile.
B)   ectotherm.
C)   amniote.
D)   endotherm.
E)   thermophile.F) C) and D)
G) A) and B)

Question 2

What key research question was addressed by King and others in studying sponges?

Accepted Answer

A)   Were the sponges the last common ancestor of eumetazoans?
B)   Did sponges survive the precambrian mass extinction, with genes unique from other animal groups?
C)   How similar is the DNA of living marine sponges to that of fossil sponges from the Cambrian?
D)   Could the Cambrian explosion of diversity of life have been mirrored by rapid evolution among sponges?
E)   Why were the sponges an evolutionary dead end, with little change and diversity since the Cambrian?F) D) and E)
G) None of the above

Question 3

Figuer:
Main animal groups are noted at the right. Names diverging at each node are morphological or body form names. Note that the animal traits key to distinguishing the groups and body forms are not shown. 
-If an animal is a vertebrate,this means that the animal

Accepted Answer

A)   has a complete digestive tract.
B)   has a backbone.
C)   does not have true tissues.
D)   does not have a complete digestive tract.
E)   does not have a backbone.F) A) and C)
G) A) and E)

Question 4

Arthropods have jointed legs.

Accepted Answer

A) True 
 B)False

Question 5

Cnidarians are

Accepted Answer

A)   Both land dwelling animals and aquatic animals are correct.
B)   aquatic animals.
C)   Both land-dwelling animals and arboreal animals are correct.
D)   arboreal animals.
E)   land-dwelling animals.F) A) and E)
G) B) and E)

Question 6

The free-swimming tunicate larva resembles a tadpole. Once it settles headfirst onto a solid surface the tail and notochord disappear, and the nerve cord shrinks to nearly nothing. The adults, which are usually sessile, retain only the pharyngeal slits. Neither adult nor larva is segmented.
-Neither adult nor larva is segmented.Tunicates go through which type of development?

Accepted Answer

A)   asexual
B)   direct
C)   hermaphroditic
D)   amniotic
E)   indirectF) B) and C)
G) A) and E)

Exam 21: Animals

Figuer: Main animal groups are noted at the right. Names diverging at each node are morphological or body form names. Note that the animal traits key to distinguishing the groups and body forms are not shown. -If an animal is a vertebrate,this means that the animal

Correct Answer
verified

What key research question was addressed by King and others in studying sponges?

Correct Answer
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Correct Answer
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Cnidarians are

Correct Answer
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Arthropods have jointed legs.

Correct Answer
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Correct Answer
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Exam 21: Animals

Figuer: Main animal groups are noted at the right. Names diverging at each node are morphological or body form names. Note that the animal traits key to distinguishing the groups and body forms are not shown. -If an animal is a vertebrate,this means that the animal

Correct AnswerverifiedShow Answer

What key research question was addressed by King and others in studying sponges?

Correct AnswerverifiedShow Answer

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Cnidarians are

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Arthropods have jointed legs.

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Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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