SC160 Lesson 7 Exam SCORE 95 PERCENT

Exam 7 SC160
Question 1 (5 points)

What characteristic is unique to echinoderms?

Question 1 options:

  

 

A lack of segmentation

 

 

A water vascular system

 

 

Suction-cup-like feet

 

 

Larvae with bilateral symmetry

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Question 2 (5 points)

Rays are a type of:

Question 2 options:

  

 

tunicate.

 

 

cartilaginous fish.

 

 

jawless fish.

 

 

bony fish.

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Question 3 (5 points)

Nearly all __________ are aquatic.

Question 3 options:

  

 

crustaceans

 

 

arachnids

 

 

flatworms

 

 

roundworms

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Question 4 (5 points)

Unique features of vertebrates include the presence of a(n):

Question 4 options:

  

 

endoskeleton.

 

 

notochord.

 

 

skull and backbone.

 

 

pharyngeal slit.

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Question 5 (5 points)

Why are bryophytes considered incompletely liberated from their ancestral aquatic habitat?

Question 5 options:

  

 

Their embryos do not develop   within gametangia.

 

 

Their sperm are flagellated.

 

 

The gametophyte generation is   dominant.

 

 

They lack a cuticle.

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Question 6 (5 points)

The first hominid to spread beyond Africa was:

Question 6 options:

  

 

"Lucy".

 

 

<i>Australopithecus   afarensis.</i>

 

 

<i>Homo erectus.</i>

 

 

<i>Homo   neanderthalensis.</i>

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Question 7 (5 points)

How do New World monkeys differ from Old World monkeys?

Question 7 options:

  

 

New World monkeys have a   prehensile tail.

 

 

New World monkeys have enhanced   depth perception.

 

 

Old World monkeys are arboreal.

 

 

New World monkeys have nails; Old   World monkeys have claws.

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Question 8 (5 points)

What important role do fungi play in many ecosystems?

Question 8 options: