The cell membrane:
a) prevents all molecules from entering/exiting the cell
b) contains proteins that are involved in cell signaling
c) is comprised of small pieces of ribonucleic acid
d) forms a non-selective barrier to hydrophilic molecules
e) all of the above are correct

The answer is E all of the above are correct

Explanation:

The menbrana cell is formed by small pieces of ribonucleic acid and proteins; It acts as a barrier to prevent the intracellular elements that compose it from leaving or entering it indiscriminately.

answer: hey

explanation:

answer:

i don't believe the ocean is purple, but it might once have been:

as for the sky, according to nasa:

"sunlight reaches earth's atmosphere and is scattered in all directions by all the gases and particles in the air. blue light is scattered more than the other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time."