instruction:
Given a statement, generate a question such that the answer is contained in that statement.
question:
Therapsids became more mammal-like as they continued to change.
answer:
What became more mammal-like as they continued to change?


question:
Babies that are very large or very small at birth are less likely to live.
answer:
What type of babies are less likely to live?


question:
A person's arm straightens when muscles antagonistic to biceps contract
answer:

What straightens when muscles antagonistic to biceps contract?