I’m pretty sure it’s hydrogen if I’m wrong I’m really sorry
Explanation:
1. cell membranes are partialy permeable, only allowing passage to some certain molecules.
2. diffusion is the movement of molecules across partially permeable membrane down concentration gradient.
3. the molecules are too big to pass through partially permeable membrane. the concentration of the molecule might be higher in the cell than in the solution/surroundings.
Each person then has 4 total alleles that determine their eye color. The B allele (brown) is always dominant. The blue eye trait is always recessive.
Answer:
i believe its the electron transport chain
Explanation:
The answer is D its the right answer because on the moon there is not oxygen for it to reach that state