Answer:
It could be separated into a group of full black plumage on the bakc, and mixed color on the back.
Organisms eat plants, which is comprised of carbohydrates; those carbohydrates come from Carbon<span> dioxide in the atmosphere. Thus, an abiotic factor (</span>carbon<span>dioxide) helps create a </span>biotic<span> factor (the plants made out of carbohydrates).</span>
I think it’s A because electrons actually taken up by oxygen molecules to make water.
