Patterns of Primary Productivity in Marine Environments Are Not Delineated

question 41

Multiple Choice

Patterns of primary productivity in marine environments are not delineated in the same way as in terrestrial environments. Why are there regions of high primary productivity at 60° N and 60° S in the oceans, when these are not regions of high productivity on land?

• A)The ocean at those latitudes is warmer, so more primary producers live there.
• B)There is little ocean movement at these latitudes, so primary producers can concentrate there.
• C)There is higher nutrient availability at these latitudes, supporting more primary producers.
• D)More sunlight is absorbed at these latitudes by the water than by the land.

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