Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Q: A mushroom is the fruiting body that occurs after two hyphae mate and form a mycelium with sporangia.

A: What is the fruiting body that occurs after two hyphae mate and form a mycelium with sporangia?
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Q: The sporophyte stage is the dominant stage of the lifecycle of a fern.

A: Which is the dominant stage of the lifecycle of a fern?
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Q: A connection to the placenta is required for a newborn baby to begin breathing.

A:
What connection is required for a newborn baby to begin breathing?
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