They are important because they contribute to clean air and water for 500 million people this is because they help sustain a healthy forest
I’m going for real I haven’t done this because it was hard didn’t get it but now I know // ANSWER -
Answer:
C
Explanation: Well C is usually correct for everything
:P
Nerve, Skin, Cyclins, Cancer
The difference between an artery and a vein is that arteries are larger, more muscular and more elastic than veins; they carry blood that is under pressure from having been pumped out of the heart; veins are under much less pressure, so they are not as strong
