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

Q: Cells are the  basic building blocks of the human body.

A: What are the  basic building blocks of the human body?
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Q: Atp or adenozine triphosphate is used for most energy functions in organisms.

A: What molecule is used for most energy functions in organisms?
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Q: When different types of tissues work together to perform a unique function, they form organ.

A:
When different types of tissues work together to perform a unique function, what do they form?
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