Answer:
Blood vessels
Explanation:
It is returned to the heart in the veins. The capillaries connect the two types of blood vessel and molecules are exchanged between the blood and the cells across their walls.
For the answer to the question above, I believe the answer is "Tertiary Period"
<span>The Tertiary Period marks the beginning of Cenozoic Era. It only began 65M years ago and lasted more than 63M years, until 1.8 million years ago.</span> I hope my answer helped you. Have a nice day!
Answer:
No sunlight penetrates the Abyssal zone.
Explanation:
I did this on my study guide a while back and got an A for it.
A because plants need the sun in order to live
