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18 July, 14:28

What would be a good hypothesis for does caffeine increase the heart rate of an earthworm

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  1. 18 July, 14:39
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    A hypothesis is usually an if then because statement, but the answer will differ as there may be multiple hypotheses to use for a single experiment.

    If an earthworm had an intake of caffeine, then their heart rate would increase because it would happen the same for humans as well.
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