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Test Bank for Marine Biology: Function, Biodiversity, Ecology 2E - page 20 / 44





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a. Counter-current exchangers

b. Sodium excretory pumps

c. Oxygen transport systems

d. Temperature regulatory mechanisms

The lateral line and otolith system both involve use of

a. Chemoreceptors mainly

b. Detection of electrical energy in the water

c. Mechanoreceptors mainly

d. Temperature receptors

Body temperature of fishes

a. Is always above ambient water temperature

b. May be greater than ambient in either the body or part of the brain

c. Is only increased in the body

d. Conforms to water temperature in all fishes

Mesopelagic fishes usually have their photophores

a. Concentrated on the dorsal surface

b. All over the body

c. Hidden unless they swim towards the surface

d. Concentrated on the ventral surface

Members of the Odontoceti

a. Suspension feed on krill

b. Sit on the bottom and attack passing sharks

c. Attack prey including fish and smaller marine mammals

d. Lay eggs on the bottom

Baleen whales

a. Attack large prey such as seals

b. Generally feed and breed in the same small areas

c. May migrate thousands of kilometers between feeding and breeding areas

d. Never feed on fish

Continuous ram feeders

a. Are never found among the whales

b. Have well developed anterior heads for attacking prey

c. Have baleen plates and feed by keeping the mouth open while swimming

d. Periodically close the mouth to expell water through the baleen plates

Pinnipeds differ from Sirenia in

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