What process happens before both mitosis and meiosis?

Interphase

Explanation:

Before dividing, the cell must go through interphase. There are three parts of interphase : G1 where the cell grows, S where DNA is copied, and G2 where the cell prepares for division. Interphase is the longest phase because the cell needs to grow.

Before mitosis, interphase happens and interphase also happens before meiosis I. it does not happen before mitosis II though

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.