Answer:
When the Cheetah starts running, it generates its energy initially by aerobic respiration, where glucose is oxidised in the presence of oxygen, resulting in generation of ATP
The answer is A.
If the bicipe muscle contracts it will bring the forearm up because the insertion of this muscle is in the forearm.
One of the functions of this muscle is flexing the elbow, which would result in the action i already mentioned.
It couldn't be B, because that would be the work of another muscle, the triceps.
They also,describe the flow energy, or what animal eats what.
Honestly you can get DNA by taking a piece of someone or just by them touching something.
Hope I helped and if you need more you could always ask me :)
-Dawn
