Answer:
Qué secuencia muestra la creciente complejidad de las organizaciones ecológicas?
Explanation:
Cellular respiration<span> requires oxygen and releases carbon dioxide. we use the released oxygen and most other organisms for </span>cellular respiration<span>. We breathe in that oxygen, which is carried through our blood to all our cells.</span>
The climate? That would fit I suppose.
I think its A
A dog will bark at animals and cars, but only if the environment permits.
-Seth
