Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Virtually all aquatic organisms depend directly or indirectly on protists for food.

Answer: Virtually all aquatic organisms depend directly or indirectly on what for food?


Question: The brain is the most complex organ in the human body.

Answer: What is the most complex organ in the human body?


Question: Injuries can be prevented by getting proper rest and recovery.

Answer:
Injuries can be prevented by getting proper what?