instruction:
Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.
question:
Fact: each of the moon 's phases usually occurs once per month
answer:
A boy is waiting to see a full moon. He notes that the full moon is tonight, and looks at it. If he wants to see another, he must wait?


question:
Fact: if an animal eats another animal then that animal is a carnivore or omnivore or predator
answer:
Which eats other creatures?


question:
Fact: the skeletal system protects internal organs
answer:

An animal would have its inner parts better protected if it had which of these?