Answer:
Active transport
Explanation:
Facilitated diffusion and simple diffusion don't require any action from the cell to occur. Active transport is the only type that requires the cell to use energy.
Answer:
a constricted vessel with high blood volume
Explanation:
because the size or area within affected blood vessels is reduced by vasoconstriction. Therefore, the blood flow is often decreased as blood vessel pressure is lower. The pressure or power of blood flow is increased at the same time, which results in higher blood pressure is the force exerted by this.
I believe its half the number of the parents.