Which statements regarding a cell membrane is true? Select one:

a.
It contains chemical markers.

b.
It is composed of one type of molecule.

c.
It protects the cell from being destroyed by bacteria.

d.
It is needed to break down materials before they enter the cell.

c

explanation:

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: