A cell or Atom is something that can process life or can processed into an object. (The atom is in objects and life Such as animals and humans as a cells in just humans and animals
It is only because of their life spand... its pretty short.
Answer:
There are many different organ systems that are involved in when we exercise. The three main ones are the respiratory system which is involved in breathing, the circulatory system which circulates blood flow throughout the body and lastly the muscular system, as you use muscles when you are moving.
Explanation:
<em>I would appreciate brainliest, if not that's ok!</em>
