Answer:
4, 2, 3, 1 from top to bottom.
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> Nose or mouth --> pharynx (throat) --> larynx --> trachea (windpipe) --> mainstem bronchus (right and left) --> bronchioles--> alveoli
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Answer:
Mutation
Explanation:
Mutation change the genetic makeup of a population of species over time.
An example is the immunity of plasmodium parasite to chloroquine without time.
Natural Selection, unless you were born in a lab which would be unnatural/artificial, and not too likely with today's technology. (Maybe one day.)
