Answer:
B) geology; theory of continental drift
Explanation:
 
        
             
        
        
        
Human reproductive cloning should not now be practiced. It is dangerous and likely to fail.
        
             
        
        
        
<span>The two types of cell cycle genes that, if mutated, cause cancer cells to divide uncontrollably are called tumor suppressor genes and proto-oncogenes</span>
        
             
        
        
        
Most of the mutations have no effects whatsoever on the organisms but some can be dangerous. There are two types of mutations that cause harm to the organism's ability to survive:teratogen muations are the mutations that form inside the uterus when the fetus is still developing and can even kill it or cause severe malformations that lead to death in the early life. Carcinogen mutations are the ones that lead to the formation of neoplasms(masses of cells that divide uncontrollably, basicly cancer).
 
        
             
        
        
        
Since it’s natural environment is very acidic, putting pepsin in a very alkaline environment would cause it to denature.