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 renewable energy source converts energy from the sunlight into electricity?

Ex Output:
geophysical energy

Ex Input:
Sulfur can combine with oxygen to produce what?

Ex Output:
sulfur bioxide

Ex Input:
What system in both males and females consists of structures that produce reproductive cells, or gametes, and secrete sex hormone?

Ex Output:
circulatory system