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 kind of systems use fluid to transmit pressure and increase force?

Answer: plumbing systems

Question: Where do most of the digestion reactions occur?

Answer: liver

Question: On insects, what are the openings on the sides of the abdomen that allows respiration to occur?

Answer:
gills