Answer:
I would assume D
Explanation:
Tube 1 doesn't contain an organism so it can't be that one. Both a snail and a plant are considered an organism, and cellular respiration occurs in almost any organism's cells
Answer:
ATP is responsible for contraction and relaxation in muscles and plays a major role in the muscular system of our body.
<span>Our biosphere is the global sum of all ecosystems. It can also be called the zone of life on Earth, a closed (apart from solar and cosmic radiation) and self-regulating system. Geology studies the Earth, and has tendrils in all ecosystems, thus the connection to the biosphere.</span>
