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

Q: Altricial organisms are helpless at birth and require lots of help from their parents.

A: What type of organisms are helpless at birth and require lots of help from their parents?
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Q: The long bone work as lever.

A: What type of function does the long bone perform?
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Q: Alternating current is the term for electric current that keeps reversing direction.

A:
What is the term for electric current that keeps reversing direction?
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