Answer: A.
Explanation:
Proteins are the things that determine what functions will play out. They are the reason we are able to digest foods, transfer oxygen throughout the body. Proteins MAKE these functions happen. Without proteins, we wouldn't be able to do anything
D. Predators
Predators keep populations of other species in check. This was pretty clearly demonstrated in Yellowstone National Park after the wolves were eradicated there. The deer populations increased to the point that the aspen trees nearly disappeared due to the saplings' being eaten by deer. Since the reintroduction of wolves to the park, the aspen trees have begun to flourish once again.
Carbon is the basic element for living thing
Answer:
The male reproduction system.
<span>d. Fun fact, if you ever feel pain in your diaphragm, its because of improper breathing. to counter this discomfort, raise your hands above your head and breathe deeply</span>
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