Answer:
Stabilizing selection results in a decrease of a population 's genetic variance when natural selection favors an average phenotype and selects against extreme variations. In directional selection, a population's genetic variance shifts toward a new phenotype when exposed to environmental changes.
Explanation:
I don't bite, don't worry
 
        
             
        
        
        
It's b because decomposers do not make food they break it down
        
             
        
        
        
Answer:
smooth endoplasmic, metabolism, lipids
Explanation:
these are the answers hope this helps you out.
 
        
             
        
        
        
Answer: When a blood vessel contracts for a short period of time.This constriction can contract small vessels completely and avoid the flow of blood through them.
Explanation: