Answer:
A, chlorophyll; B, ATP is the correct answer.
Explanation:
I took the quiz and got it right.
50$ or 60$ depending on who you get it from
The system that is responsible for breaking down food and releasing essential nutrients and other substances that the body needs and requires is the digestive system.
I believe the answer is a Meander. (beware that this is actually a geography question not a biology one, please put it in the right section next time and it will be answered quicker!)
B: things made of a single atom