<span>D.Oxygen will diffuse from an area of higher concentration (outside the cell) to an area of lower concentration (inside the cell). This is because cells respire constantly, as this process uses up oxygen cells will contain less oxygen than its surroundings. Oxygen moves by the process of diffusion, in diffusion a molecule will always move from a higher concentration to a lower concentration.</span>
This is the english version <span>How to solve the problem with water pollution?</span>
It ranges are you watching tv or not recycling becus that can damege the enviorment
<span>Two types of sex cells are
> Sperm (in males)
> Egg or ovum (in females)
Sperm is produces in the testes.
Ovum or egg is produced in the ovaries.</span>