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koban [17]
3 years ago
8

Which of the following is an example of an open system?

Biology
1 answer:
Crank3 years ago
5 0
A is the answer to this problem
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<h3>What is Bottom up regulation ?</h3>

The bottom-up effect means that a lower trophic level in the biological network affects the community structure of higher trophic levels by means of resource restriction

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