Answer:
i don't know if im right but honestly i could be A B or C
Explanation:
but i would say if its humans adapting to the environment and if an animal probably the same thing but maybe A more than C 
 
        
             
        
        
        
Answer:
a disease transmitted form animal to humans
 
        
                    
             
        
        
        
Answer:
Homologous Chromosomes (tetrad)
Explanation:
Sister chromatids remain attached at that time.
 
        
             
        
        
        
Through the process of transformation. Hope this helps.
        
             
        
        
        
A. presence increases potassium concentration in the blood