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.

Q: What is the name for the stratospheric gas layer that protects living things from uv radiation?

A: carbon layer
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Q: What simple sugar is the cell's primary source of energy?

A: carbon
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Q: Approximately how many weeks does the fetal period last?

A:
10 weeks
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