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

Input: Consider Input: Deceleration is the opposite of what?

Output: acceleration

Input: Consider Input: Normal blood is comprised of nearly half erythrocytes, which is another word for what cells?

Output: red blood cells

Input: Consider Input: In eukaryotes, the cell cycle consists of a long preparatory period, called __________ before undergoing cell division.
Output: interphase