Answer:
b. causes constriction of cerebral blood vessels in response to a drop in systemic blood pressure
Explanation:
No matter what happens or fluctuations occur in the blood pressure of body the blood pressure to the brain is always kept constant by the necessary changes and means possible. The blood value is always maintained at 50mL per 100g of Brain Tissue. The constriction of blood vessel keep the blood pressure normal to the brain in case of low blood pressure. Otherwise, it can have deadly consequences.
<span>Darwin would not agree with the idea that individuals striving to survive leads to better adapted species. Darwin's studies showed that evolution occurred out of necessity and over long periods of time. He was the first to suggest that species can evolve from other species, which was his most notable theory.</span>
The ecosystem makes the forest sustainable
B: brown
B:black
brown dog: bb
First black dog: BB
Second black dog: Bb
Black is dominant
Meristematic , ground tissue, dermal tissue and vascular tissue .
