When the concentration of molecules on both sides of a membrane is the SAME, the solution moves from an area of higher concentration to an area of lower concentration. True False

true

Explanation:

the molecules will naturally follow the concentration gradient. they will always try to flow from high concentration to low concentration. (like on a crowded elevator, you try to move away from people)

answer; i believe the correct answer is (replication is not conservative);

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.