Answer:
The theory of evolution was proposed by Charles Darwin and was first formulated in his book, "Origin of Species" in 1859. It focuses on the changes in species and populations over time
 
        
             
        
        
        
B)<span>limited number of healthcare providers
&
c) </span><span>limited coverage for healthcare services
</span>
        
                    
             
        
        
        
They are used to directly amplify segments of dna