Given a scientific question, generate an incorrect answer to the given question. The incorrect answer should be a plausible alternative to the correct answer. The answer should be some other item belonging to the same category as the correct answer but should be incorrect.

Ex Input:
What is indicated by the ratio of the output force to the input force in a machine?

Ex Output:
momentum

Ex Input:
Abundant in unpolluted ponds and streams, planarians prey on smaller animals or feed on?

Ex Output:
algae

Ex Input:
What radiation, generally produced by thermal motion and the vibration and rotation of atoms and molecules, literally means "below red"?

Ex Output:
microscopic