I think B but I maybe wrong please correct
The skin of a cell
molecule flow from high to low
glucose facilitation
ion channels
Answer:
d their coats will become darker due to natural selection
Explanation:
The answer is D
Explanation:
I apologise for the late answer, but D would be the best one, as it does not discuss morality or anything differing from person to person. The effect it has on birds however, can be readily studied using the scientific method.
