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Alecsey [184]
3 years ago
14

Which is am example of an internal stimulus?

Biology
2 answers:
Bad White [126]3 years ago
7 0
I think it’s A or C....
deff fn [24]3 years ago
7 0

The answer is C, a decrease in oxygen levels in blood during exercise becuase it is inside the body.

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Explanation:

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