Although primary productivity in tropical areas is generally low, which of the following tropical locations have unusually high primary productivity rates?
A) equatorial upwelling zones
B) coastal upwelling zones
C) coral reefs
D) dead zones
E) All of the above tropical areas have relatively high primary productivity.
Correct Answer:
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Q44: Nutrient flow in an ecosystem is:
A)bi-directional.
B)cyclical.
C)semi-conservative.
D)top down.
E)unidirectional.
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Q46: The area of the ocean that produces
Q47: Many of the organisms responsible for toxic
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Q51: In temperate oceans of the northern hemisphere
Q52: If 10,000 kilocalories (kcal)of energy were contained
Q53: Productivity in tropical oceans is generally:
A)light-limited.
B)nutrient-limited.
C)oxygen-limited.
D)light and
Q54: Marine seed-bearing plants include all of the
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