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.

Example Input: Lampreys possess a large round sucker, lined with teeth, that surrounds the mouth and is used to feed on what?
Example Output: parasites

Example Input: What occurs when a substance diffuses through a cell membrane without any help from other molecules?
Example Output: simple filtration

Example Input: Studies have shown that not only does reproduction have a cost as far as how long male fruit flies live, but also fruit flies that have already mated several times have limited amounts of this?
Example Output:
dna