Answer :
Choice A i think
Answer & Explanation:
Feedback is a form of regulation where the main product of one reaction, can also inhibit it. It can work in several ways, mainly there's a receptor that, somehow, measures the presence of a determined molecule, in this case, ATP. These receptors can also be involved in the metabolic process and when there's an excess of ATP, the enzymes are inhibited, maybe with an allosteric type of inhibition.
A community is diverse species living together
An Ecosystem is all the living and nonliving factors that affect an organism
D) Hypotonic
Aka when skin cells swell from excess water
The answer is smoke in air because air cannot be separated by filtration. Distillation deals with the conversion from gas to liquid. I believe that will work with smoke and air. Hope I helped. Goodluck
