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A keystone species is a species that has an unusually __________ effect on its ecosystem.
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Answer :

Answer:

A keystone species is a species that has an unusually large effect on its ecosystem.

Explanation:

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KIKILEYS8GO

Answer:

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Explanation:

it's a keystone species because it's unusually important in its ecosystem, it plays a big part.

the word keystone is used because it has to do with something being dependent on it

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