instruction:
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 is the term for the hard covering that protects insects, crustaceans, and spiders?
answer:
endoplate

question:
What kind of power plant uses energy to heat water that becomes steam and spins turbines?
answer:
hydroelectric

question:
What ear structure has three fluid filled ducts, including the organ of corti, where sound waves in air go to vibration?
answer:
semicirciular canal