Answer:
The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change.
Explanation:
D because they are complete systems
Answer:
Rays having same endpoint E but not in the opposite directions are ED and EC. This pair of rays meet at point E having different directions.
The answer would be C. It cant be A because thats the small intestant job not the large intestant. It cant be B because thats the pancreas job. And it cant be D because thats DNA job. So its just C. Hope this helped
Answer:
the mature organism is sterile.
Explanation: just is