Mainly to control the movement of substances in and out of the cell. It’s selective so it only allows certain molecules inside such as small molecules like water.
I'm really quite positive a fish & a rat couldn't quite mutate together
Answer:
no
Explanation:
tracheids doesn't have protoplasts
The respiratory system is the organ system that involves breathing. Humans breathe in oxygen. Another way to find the answer is to break down the word respiration. Respiration means "to breathe" or "the action of breathing". The answer is D.
Hmmm. I'm not really sure.. But my answer would be H.
