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Flura [38]
3 years ago
9

The size of a frog population in a pond remains fairly constant over a period of several years because of a. decreasing competit

ion b. environmental carrying capacity c. excessive dissolved oxygen d. the depth of the water
Biology
1 answer:
Fittoniya [83]3 years ago
6 0

Answer:

d

Explanation:

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a) epigenetic change.

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