Answer:
Explanation:
Answer: C, Friction
Which force acts when one object moves against another object?
Friction
down/lower. Your Welcome!
Answer:
adrenal gland smooth muscle in the walls of the aorta cardiac muscle in the right atrium
Explanation: Rivalry
There is safety in numbers, and with that, they can run together more often without the fear of being attacked, and must push themselves to match others, therefor getting fit