In Marine Ecosystems, Net Primary Productivity Tends to

question 42

Multiple Choice

In marine ecosystems, net primary productivity tends to

• A) be greater along shorelines where terrestrial nutrients enter the marine environment.
• B) be lower where the oceans border land because terrestrial pollution suppresses marine productivity.
• C) be lowest in areas where upwelling brings colder water to the surface.
• D) be greater than the net primary productivity on land.

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Definitions:

Genetic Drift

A mechanism of evolution in which allele frequencies of a population change over generations due to chance or random events.

Small Populations

Populations with a small number of individuals, which may face increased risks of extinction due to genetic drift, inbreeding, and reduced genetic diversity.

Genetic Isolation

A situation where different populations of a species are unable to interbreed, often leading to the formation of new species.

Secondary Contact

Refers to the reintroduction or interaction of populations that were previously isolated, often used in the context of evolutionary biology.