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.
Answer:
The atomic number of phosphorus is 15. It has zero charge because it has 15 electrons.
Answer:
46 chromosomes and the zygote cell
Explanation:
A. nucleus because it is in the center of the cell and it’s the core of the cell
