Irk look it up on the computer
Answer:
because they have thicker walls
Explanation:
blood is punped our of the heart very fast which means it would need a blood vessel witch thick walls to withstand the pressure. thin walls would cause the blood vessle damage and may evwn break as it wouldn't be able to withstans the pressure.
They typically sleep about 16-17 hours a day; that’s a lot!
Answer:
The answer is C
Explanation:
That is the only one they have in common.
Answer:
they are expensive is the answer
