The correct answer is C. Mitosis.
Hoped this helped.
-Davismr00.
Mark your question with chemistry
Answer:
gravity
Explanation:
gravity is the reason why regular things can't float, why we land when we jump, and why we can't fly.
gravity pulls us towards the ground, towards the center of the earth (inner core)
Answer:
D. build them up and breaks them down
hope this will help :)