Question 1

The evolution of the notochord in chordates permitted a more complex embryonic development.

Accepted Answer

A) True 
 B)False

Question 2

What class is comprised of nautiluses, octopuses, and squid?

Accepted Answer

A)  Cephalopoda 
B)  Bivalia 
C)  Gastropoda 
D)  Mollusca

Question 3

Which worm has a segmented body plan?

Accepted Answer

A)  Platyhelminthes 
B)  Nematodes 
C)  Roundworms 
D)  Polychaetes

Question 4

What characteristics have made arthropods the most successful phylum? How do these animals grow? Can you think of any disadvantage of growing this way?

Accepted Answer

The answer of What characteristics have made arthropods the most...

Question 5

What unique feature do all echinoderms have?

Accepted Answer

A)  Water vascular system 
B)  An expelling stomach 
C)  A complex chewing jaws 
D)  Brains

Question 6

Squid are the most intelligent invertebrates.

Accepted Answer

A) True 
 B)False

Question 7

What is the difference between invertebrate and vertebrate chordates? What organism has characteristics of both?

Accepted Answer

The answer of What is the difference between invertebrate and...

Question 8

Photosynthetic autotrophs changed the composition of the atmosphere during the oxygen revolution.

Accepted Answer

A) True 
 B)False

Question 9

Brittle stars employ a unique evasive technique that involves detaching an arm if grabbed by a predator.

Accepted Answer

A) True 
 B)False

Question 10

Polychaetes are the most successful worm phyla, being found in terrestrial, aquatic, and marine environments.

Accepted Answer

A) True 
 B)False

Question 11

What is the most effective anti-drag body plan?

Accepted Answer

A)  Torpedolike 
B)  Horizontally compressed 
C)  Vertically compressed 
D)  Disk-shaped

Question 12

Marine birds usually avoid land unless they are finding food.

Accepted Answer

A) True 
 B)False

Question 13

What needle-like structure provides a skeletal network for a sponge?

Accepted Answer

A)  Cnidoblasts 
B)  Polyps 
C)  Spicules 
D)  Zooxanthellae

Question 14

What special tool do tunicates use to obtain more food when suspension feeding?

Accepted Answer

A)  Tunic outer covering 
B)  Mucous plankton net 
C)  Water vascular system 
D)  Notochord

Question 15

The teeth in odontocetes are made of baleen.

Accepted Answer

A) True 
 B)False

Question 16

Which is not a characteristic of an arthropod?

Accepted Answer

A)  Exoskeleton 
B)  Articulation of appendages 
C)  Striated muscle 
D)  Central nervous system

Question 17

The first fish evolved about 50 million years ago.

Accepted Answer

A) True 
 B)False

Question 18

What do the simplest vertebrates lack?

Accepted Answer

A)  Jaws 
B)  Notochord 
C)  Central nervous system 
D)  Teeth

Question 19

What adaptation have only toothed whales developed for prey detection?

Accepted Answer

A)  Ability to generate internal body heat 
B)  Bradycardia 
C)  Advanced gas exchange system 
D)  Echolocation

Question 20

How do some predatory sharks find their prey?

Accepted Answer

A)  They are attracted to vibrations in the water. 
B)  They use their keen sense of smell. 
C)  They use sensitive organs underneath their skin. 
D)  All of these choices

Exam 15: Marine Animals

The evolution of the notochord in chordates permitted a more complex embryonic development.

What class is comprised of nautiluses, octopuses, and squid?

Which worm has a segmented body plan?

What characteristics have made arthropods the most successful phylum? How do these animals grow? Can you think of any disadvantage of growing this way?

What unique feature do all echinoderms have?

Squid are the most intelligent invertebrates.

What is the difference between invertebrate and vertebrate chordates? What organism has characteristics of both?

Photosynthetic autotrophs changed the composition of the atmosphere during the oxygen revolution.

Brittle stars employ a unique evasive technique that involves detaching an arm if grabbed by a predator.

Polychaetes are the most successful worm phyla, being found in terrestrial, aquatic, and marine environments.

What is the most effective anti-drag body plan?

Marine birds usually avoid land unless they are finding food.

What needle-like structure provides a skeletal network for a sponge?

What special tool do tunicates use to obtain more food when suspension feeding?

The teeth in odontocetes are made of baleen.

Which is not a characteristic of an arthropod?

The first fish evolved about 50 million years ago.

What do the simplest vertebrates lack?

What adaptation have only toothed whales developed for prey detection?

How do some predatory sharks find their prey?