Answer:
Moving things in and out of the cell is an important role of the plasma membrane. It controls everything that enters and leaves the cell. There are two basic ways that substances can cross the plasma membrane: passive transport, which requires no energy; and active transport, which requires energy.
 
        
             
        
        
        
Answer:
A
Explanation:
A because the introns are edited then linked together by nucleotides
 
        
             
        
        
        
Open-mindedness is needed for the emerging scientific ideas to be accepted (or : to not be rejected without consideration). 
Additionally, open-mindedness as a attitude often leads to new scientific ideas emerging: it means that people are more comfortable to try out new things and to test new hypotheses.  
        
             
        
        
        
Answer is A. I kid chemistry a while back but I am pretty certain it is A.