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AP® Environmental Science

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Ecosystem Structure: Identifying Species Interactions

APES-VTGJ$B

The Narrowmouth Catshark and the Spiny Dogfish shark are species with overlapping fundamental niches in the South Atlantic.

As a result, the Narrowmouth Catshark occupies a realized niche that feeds on benthic fish and crustaceans, while the realized niche of the Spiny Dogfish includes feeding on pelagic school fish.

This scenario BEST illustrates which species interaction?

A

Intraspecific competition.

B

Interspecific competition.

C

Competitive exclusion.

D

Resource partitioning.

E

Mutualism.