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

Q: Collision theory states that chemical reactions occur when atoms, ions, or molecules collide.

A: What states that chemical reactions occur when atoms, ions, or molecules collide?
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Q: Stem basic plant structure facilitates dispersal of pollen and fruit by raising reproductive structures.

A: What basic plant structure facilitates dispersal of pollen and fruit by raising reproductive structures?
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Q: Epithelium are the desmosome found in a cell.

A:
Where are the desmosome found in a cell?
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