Marine Bio Ch 4 2 Of 3: Question Preview (ID: 990)


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The primary product of primary production is ________________ Scientists express measurement of it as
a) Carbon, grams per square meter of surface per year b) Carbon, parts per thousand c) Oxygen, grams per square meter of surface per year d) Oxygen, parts per thousand
Biomass means _____________________ Standing crop is the ___________________ in an ecosystem
a) Mass of living tissue, mass of primary consumers at given time b) Mass of primary consumers, mass of living tissue c) Mass of living tissue at a given time, mass of living tissue d) Mass of living tissue, mass of living tissue at a given time
The primary production of land is higher than the primary production of the sea, but the sea's primary production is much more effecient
a) True b) False c) d)
Palnkton describes
a) A wide variety of organisms that share a habitat and lifestyle b) a particular species of organisms c) d)
Most primary production in the sea is from
a) Phytoplankton b) Algae c) Zooplankton d)
A diatom is an organism characterized by
a) A rigid cell wall made of silica b) A silica intenral upporting structure c) A calcium carbonate shell d) One or two flagella
A dinoflagellate is an organism characterized by
a) A rigid wall made of silica b) A silica internal supoortin structure c) A calcium carbonate shell d) One or two flagella
A coccolithophore is an organism characterized by
a) A rigid wall made of silica b) A silica internal supporting structure c) A calcium carbonate shell d) three flagella
A silicoflagellate is an organism characterized by
a) A rigid wall made of silica b) A silica internal supporting structure c) A calcium carbonate shell d) twoflagella
Picoplankton contribute substantially to the poductivity of tropical regions
a) True b) False c) d)
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