Answer:
4 Cornea
Explanation:
The cornea is the white cell covered your eyes
I guess that is:
Within the capillaries of the lungs, gases are exchanged by diffusion; O2 diffuses from the alveolus to the bloodstream and CO2 diffuses from the bloodstream to the alveolus.
The answer is D, <span>Each daughter molecule contains one DNA strand from the parent molecule.</span>