Given a statement, generate a question such that the answer is contained in that statement.
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Question: An animal with an additional joint in its mandible became more mammal-like as it continued to evolve

Answer: What did an animal with an additional joint become?


Question: therian mammals give birth to live young, and house the embryo until it is complete

Answer: Who give birth to live young?


Question: Respiration begins with the breathing in of air or oxygen.

Answer:
What does the process of respiration begin with?