The drawing below illustrates a small portion of the molecules that make up a cell membrane. The phospholipid molecules serve to A) prevent the passage of certain molecules into the cell
B) allow glucose molecules into the cell
C) line up amino acids for protein synthesis
D) help cells recognize each other

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.

yes

no

blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.

i wish i could with all of them i can barley see the first one so here's the answer to the first one b