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.

In classical conditioning, a response called the conditioned response is associated with what?
unconditioned stimulus

Under which conditions do many bacteria carry out alcohol fermentation?
melting

Muscle atrophy due to age is called what?

nymphomania

