Question: A five - degree increase in the ocean temperature off the coast of Washington caused sea stars to stop feeding on clams the rocky intertidal

A five

-

degree increase in the ocean temperature off the coast of Washington caused sea stars to stop feeding on clams the rocky intertidal zone. The clams quickly became the dominant species in the intertidal zone, and the diversity of overtebrate species in this habitat fell by half. Why?

Clams are a keystone species in this intertidal community.

Sea stars are a keystone species in this intertidal community.

Clams do better in cold water.

Sea stars have other competitors.

A five - degree increase in the ocean temperature

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