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.
--------
Question: What produces hormones referred to as thymosins, which contribute to the development of the immune response in infants?

Answer: pancreas

Question: What is the term for the measure of a fluid's thickness?

Answer: friction

Question: Sulfur can combine with oxygen to produce what?

Answer:
sulfur bioxide