What would happen if the cell membrane were completely made of a polar
substance?

a. the cell would be unable to maintain a stable internal
environment.
b. the cell would need to use more facilitated diffusion
c. the cell would stop all substances from entering
d. the cell would not be able to produce vacuoles.

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

b) the inside picture would look at a very high temperature in a very low ph

actually the answer is c