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Question

A and B together can clean a lab in 4 days. Independently, A can clean the lab in 20 days. How many days will it take for B to independently complete the task?

Options

Choose one · Correct answer highlighted

Explanation

The principle of core biological organization explains that structure-function relationships govern cellular processes. Hence 5 fits best because it integrates fundamental life science principles, as documented in authoritative sources on general biology.

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