MATH
the answer to 2+2
what is 4?
the answer to 2-2
what is 0?
the answer to 3x3
what is 9?
how is a fossil formed
what is it when a remain animal or lifeform becomes presereved in stone
the answer to 12x9
what is 108?
the answer to 164x9
what is 1476?
the powerhouse of a cell
what is mitochondria