Two things that INCREASE population, would be an increase in leisure space. Another is if the area is sustainable for life. Two things that would DECREASE population, would be a scarcity of any required resources. A decrease in space, and not a sustainable area.
Your answer would be B) Phenotype.
x
Answer:
never give up its an order if you do then so dose life
Explanation:
never give up
I'm not sure, but it could possibly be diabetes
A. umbilical cord is the answer
