Given a scientific passage and an answer, generate a question for the given answer.

Q: Passage: The embryo develops from a fertilized egg. While still inside the seed, the embryo forms its first leaf (cotyledon) and starts to develop a stem (hypocotyl) and root (radicle). Answer: cotyledon

A: What is the name of the first leaf developed inside an embryo?
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Q: Passage: Monarch butterflies gather in large groups as they migrate 2,500 miles south each fall. They return to the north in the spring. This migration is a cycle that repeats every year. Answer: migration

A: What do we call the seasonal movement of animals?
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Q: Passage: Some substances in food cannot be broken down into nutrients. They remain behind in the digestive system after the nutrients are absorbed. Any substances in food that cannot be digested and absorbed pass out of the body as solid waste. The process of passing solid food waste out of the body is called elimination. Answer: elimination

A:
What is the name of the process in which solid food waste is passed out of the body?
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