Marine Resources, C 15: Question Preview (ID: 3528)

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Nearly _____________ of the seals and sea lions are taken for fur annually
a) 100,000 - 200,000 b) 300,000 - 400,000 c) 400,000 - 500,000 d) 500,000 - 600,000
A common use of algae is as
a) algin, a food additive b) a paper product c) an aerospace structural material d) all to the answers are correct
The growth in aqua culture is
a) flat (not changing) b) downward c) steeply upward d) undetermined
____% of the seafood we eat comes from the aqua culture
a) 10-25 b) 25-30 c) 30-45 d) 45-55
Difficulties of aqua culture include
a) to feed some farm grown sea food, you must overfish another species to feed them b) disease is hard to control in aqua culture conditions c) aqua cullture releases nitrates into the water d) all of the answers are correct
Bioprospecting is
a) the search for gold in sea water b) the search for gold in marine organisms c) the search for pharmacological or other chemicals from marine resources d) none of the above
Safe bioprospecting requires a series of innoculations
a) true b) false c) d)
__________% of the protein in the human diet comes from the sea
a) 4 b) 10 c) 18 d) 34
Commercial fish are found in the waters of ________________ because ______________
a) the open ocean; there is little pollution b) the deep sea; hydrothermal vents provide heat c) the continental shelf and off shore regions; these are highly productive ecosystems d) none of the answers are correct
____________ is the fish group that accounts for the largest commercial harvest
a) The clupeids b) The crustaceans c) cod d) mahi mahi
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