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n200080 [17]
3 years ago
5

Keystone Species

Biology
1 answer:
Ber [7]3 years ago
4 0
Kelp --> sea urchins ---> sea otters best represents the feeding relationships in a kelp ecosystem that has not been disturbed by humans.
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A. theory because it is an explanation that is supported by extensive observations, experimentation, and reasoning.

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