Answer: Vascular smooth muscle cells.
Explanation:
Vascular smooth muscle cells are the contractile tissues which regulates flow blood and pressure of the blood by vasoconstriction (contraction) and/or vasodilatation (relaxation).
Vasoconstriction is the contraction of the blood vessels to increase tge pressure of the blood.
Vasodilatation is the relaxation of the blood vessels which results in a decrease in blood pressure.
This is happen during anaphase when two chromatids separate and move towards opposite poles,
Answer:
The amount of people per square mile or kilometer of land; also called arithmetic density.
An educated guess is the best way to describe hypothesis
