Question 1

All sea turtle species are gradually increasing their populations.

Accepted Answer

A) True 
 B)False

Question 2

All of the following are part of the nekton except ________.

Accepted Answer

A)   whale shark
B)   tuna crab
C)   green turtle
D)   giant squid
E)   All of these are part of the nektonF) A) and B)
G) A) and E)

Question 3

Polar bears are ________.

Accepted Answer

A)   managed by international agreement
B)   top predators of Arctic marine food chains
C)   hunted by native peoples
D)   protected by the U.S. Marine Mammal Act
E)   All of these are correct.F) C) and E)
G) C) and D)

Question 4

Polar bears ________.

Accepted Answer

A)   do not like to get wet
B)   can swim continuously for 100 km
C)   feed primarily on fish
D)   are found at both poles
E)   can swim continuously for 100 km, feed primarily on fish, and are found at both polesF) A) and B)
G) None of the above

Question 5

The only herbivorous marine mammal is a ________.

Accepted Answer

A)   seal
B)   sea lion
C)   manatee
D)   grey whale
E)   sea otterF) A) and E)
G) B) and C)

Question 6

Sea snakes have skin that is ________.

Accepted Answer

A)   impervious to gases
B)   poisonous
C)   permeable to salt
D)   impervious to saltE) C) and D)
F) B) and C)

Question 7

Which organisms are able to control their body temperatures?

Accepted Answer

A)   Sea birds
B)   Whales
C)   Seals
D)   Whales and seals
E)   Sea birds, whales, and sealsF) None of the above
G) A) and B)

Question 8

Which migration route is not correct?

Accepted Answer

A)   California gray-between Mexico and the Bering Sea
B)   Humpback-between Hawaii and the Gulf of Alaska
C)   Bowhead-between the Bering and Chukchi seas
D)   Sperm-between the coast of Maine and Greenland
E)   Narwhal-between Greenland and Arctic islandsF) A) and C)
G) B) and E)

Question 9

How does the whale shark, the world's largest fish, feed?

Accepted Answer

A)   active predation
B)   ambush predation
C)   filter feeding
D)   grazing
E)   scavengingF) All of the above
G) A) and C)

Question 10

Birds are homeotherms, meaning they maintain a constant body temperature.

Accepted Answer

A) True 
 B)False

Question 11

To which group do the tuna, salmon, and swordfish belong?

Accepted Answer

A)   Intertidal
B)   Benthos
C)   Nekton
D)   Photon
E)   PlanktonF) A) and D)
G) A) and E)

Question 12

The group of vertebrates with the most species, that is, the most diverse, in the sea is ________.

Accepted Answer

A)   birds
B)   fish
C)   reptiles
D)   mammals
E)   amphibiansF) C) and D)
G) A) and E)

Question 13

The presence of seabirds is a good indicator of ________.

Accepted Answer

A)   marine pollution
B)   cold water
C)   high productivity
D)   the presence of landE) None of the above
F) All of the above

Question 14

The countercurrent system of flow is involved in ________.

Accepted Answer

A)   increasing blood flow into gills
B)   decreasing the time it takes for blood to flow through gills
C)   increasing the amount of oxygen that diffuses into the blood
D)   increasing the efficiency of the movement of gills
E)   increasing heart rateF) A) and D)
G) A) and C)

Question 15

Invertebrates and most fish are poikilotherms.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following does not describe marine reptiles?

Accepted Answer

A)   animals
B)   poikilotherms
C)   vertebrates
D)   photoheterotrophs
E)   None of these is typical of reptiles.F) B) and D)
G) A) and C)

Question 17

Toothed whales are larger than baleen whales.

Accepted Answer

A) True 
 B)False

Question 18

Seals, turtles, squid, and sea snakes are ________.

Accepted Answer

A)   heterotrophs
B)   members of the nekton
C)   pelagic organisms
D)   All of these are correct.
E)   None of these is correct.F) A) and E)
G) D) and E)

Question 19

Baleen whales feed principally on ________.

Accepted Answer

A)   copepods and krill
B)   diatoms and dinoflagellates
C)   fish and squid
D)   All of these are correct.
E)   None of these is correct.F) All of the above
G) B) and E)

Question 20

Dolphins and porpoises are small-toothed whales.

Accepted Answer

A) True 
 B)False

Exam 13: The Nekton: Swimmers of the Sea

Invertebrates and most fish are poikilotherms.

Correct AnswerverifiedShow Answer

Toothed whales are larger than baleen whales.

Correct AnswerverifiedShow Answer

How does the whale shark, the world's largest fish, feed?

Correct AnswerverifiedShow Answer

The presence of seabirds is a good indicator of ________.

Correct AnswerverifiedShow Answer

To which group do the tuna, salmon, and swordfish belong?

Correct AnswerverifiedShow Answer

Which organisms are able to control their body temperatures?

Correct AnswerverifiedShow Answer

Which migration route is not correct?

Correct AnswerverifiedShow Answer

Birds are homeotherms, meaning they maintain a constant body temperature.

Correct AnswerverifiedShow Answer

Polar bears ________.

Correct AnswerverifiedShow Answer

Dolphins and porpoises are small-toothed whales.

Correct AnswerverifiedShow Answer

All sea turtle species are gradually increasing their populations.

Correct AnswerverifiedShow Answer

Which of the following does not describe marine reptiles?

Correct AnswerverifiedShow Answer

The only herbivorous marine mammal is a ________.

Correct AnswerverifiedShow Answer

Sea snakes have skin that is ________.

Correct AnswerverifiedShow Answer

Baleen whales feed principally on ________.

Correct AnswerverifiedShow Answer

All of the following are part of the nekton except ________.

Correct AnswerverifiedShow Answer

The group of vertebrates with the most species, that is, the most diverse, in the sea is ________.

Correct AnswerverifiedShow Answer

The countercurrent system of flow is involved in ________.

Correct AnswerverifiedShow Answer

Polar bears are ________.

Correct AnswerverifiedShow Answer

Seals, turtles, squid, and sea snakes are ________.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified