What is vasoconstriction in biology?

Vasoconstriction is the narrowing of the blood vessels resulting from contraction of the muscular wall of the vessels

Explanation:

PLS MARK ME BRAINLIEST

and wdym biology !? lo

Vasodilation is the widening of your blood vessels. It happens when smooth muscles found in the walls of arteries or large veins relax, allowing the blood vessels to become more open. This leads to an increase in blood flow through your blood vessels as well as a decrease in blood pressure.:

d. sodium chloride ions.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)