Sumich Marine Biology, 8E: Study Quizzes

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Introduction to the Biology of Marine Life, Eighth Edition, James L. Sumich and John F. Morrissey

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Study Quizzes

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results. At the end of each exam, you have the option to e-mail your results to your instructor.

1: Large areas of polar seas freeze over during winter and then melt each summer. This type is ice is called:
	A: seasonal ice
	B: temporary ice
	C: pack ice
	D: ephemeral ice

2: Primary production around Antarctica is about _______ g C/m²/yr.
	A: 10
	B: 25
	C: 65
	D: 100

3: Which of the following statements about cetacean pups is false?
	A: they are unable to swim at birth
	B: they are relatively large
	C: their insulation is not well developed
	D: they are born in tropical or subtropical waters

4: Ice breeding seals tend to be monogynous because:
	A: their genes favor this strategy
	B: females are widely scattered on pack ice
	C: low polar productivity does not provide enough energy for more than one mating attempt
	D: they do not have time to mate with more than one female because they must feed constantly to compensate for heat loss

5: The most abundant seal in Arctic waters is the:
	A: ringed seal
	B: harp seal
	C: hooded seal
	D: elephant seal

6: The walrus is the only species in family:
	A: Phocidae
	B: Odobenidae
	C: Otariidae
	D: Delphinidae

7: The courtship system employed by the walrus is known as a(an):
	A: territory
	B: harem
	C: lek
	D: social aggregation

8: The preferred prey of polar bears is:
	A: sea birds
	B: beluga whales
	C: penguins
	D: ringed seal pups

9: Gray whales exhibit the most unique feeding of any mysticete in that they consume:
	A: Arctic seals
	B: benthic invertebrates that they suck out of mud
	C: penguins
	D: schooling anchovies

10: The cue that initiates the annual migration of gray whales is:
	A: formation of pack ice
	B: shortening of days
	C: melting of fast ice
	D: not well understood

11: The behavioral phenomenon wherein copulating males attempt to displace or dilute a competitor's sperm within a female's reproductive tract is termed:
	A: competitive exclusion
	B: sperm competition
	C: reproductive displacement
	D: vaginal territoriality

12: The long, spiral tusk of the narwhal is:
	A: present only in males
	B: used to spear food
	C: actually a single horn on their foreheads
	D: thought to have spawned the unicorn legends

13: Long-lived aggregations in which killer whales travel are known as:
	A: pods
	B: packs
	C: herds
	D: flocks

14: About _______ % of bird species are considered to be sea birds.
	A: 3
	B: 8
	C: 15
	D: 22

15: Essentially all Antarctic communities depend directly or indirectly on which of the following species?
	A: humans
	B: phytoplankton
	C: krill
	D: seals

16: The largest living penguins are the _______ penguins.
	A: chinstrap
	B: adelie
	C: emperor
	D: tufted

17: The most abundant seal on Earth is the:
	A: crabeater
	B: Weddell
	C: hooded
	D: Ross

18: Which of the following baleen whales does not feed in Antarctic waters during the summer?
	A: blue
	B: fin
	C: bowhead
	D: minke

19: Bubble-net feeding is only known to occur in _______ whales.
	A: blue
	B: humpback
	C: killer
	D: bowhead

20: Although 29,000 blue whales were harvested in 1929 alone, today the Antarctic population stands at just:
	A: 2,000
	B: 200
	C: 20,000
	D: 5,000

21: Which of the following odontocetes does not inhabit Antarctic waters?
	A: killer whales
	B: bottle-nosed whales
	C: sperm whales
	D: beluga whales

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