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What does a Keystone species do for the environment?
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What does a Keystone species do for the environment?

User Taquan
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keystone species is an organism that helps define an entire ecosystem. By keeping populations of mussels and barnacles in check, this sea star helps ensure healthy populations of seaweeds and the communities that feed on them—sea urchins, sea snails, limpets, and bivalves.
User Spongyboss
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