Answer: B and C
Explanation:
Just had this question on edge nuity and I got it right !
Answer: the ecosystem is balanced.
Explanation:
Athletics would be the easiest choice here
Sports are an active that takes up a lot of different organ systems. When running I use my muscular system and cardiovascular system the most. The cardiovascular system directly controls running because it helps prevent me from getting tired and worn out faster.
Hope this helps :)
It is usually caused by the forces of gravity
Brainliest?