Given a scientific question, generate a correct answer to it.

Ex Input:
What is another name for nearsightedness?

Ex Output:
myopia

Ex Input:
What are monosaccharides and disaccharides also called?

Ex Output:
simple sugars

Ex Input:
John dalton thought that what unit, which means "indivisible", could not be divided into smaller, simpler particles?

Ex Output:
atom