During photosynthesis, plants take in light energy from the Sun, carbon dioxide from the air, and water through their roots. Oxygen is a product of photosynthesis.
Stomach contracting to mix foods with enzymes
Answer:D. right; both the right and left eye
Mucous cells is what I think is the answer. hope it helps ;)
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.