Answer:
b........................
 
        
                    
             
        
        
        
Answer:
They are semi-permeable, which means that some molecules can diffuse across the lipid bilayer but others cannot. Small hydrophobic molecules and gases like oxygen and carbon dioxide cross membranes rapidly. 
Explanation:
 
        
             
        
        
        
Answer:
I'm gonna say that they are both mammals 
srry if this is not helpful
 
        
                    
             
        
        
        
Answer:
Imagine that to be able to roll your tongue you need two genes, A and B. For each of There is a certain dominant version for each of these genes that lets you roll your tongue.  cannot roll their tongue would have a tongue roller for a child. Another example is something called a modifier gene
 
        
             
        
        
        
Answer:A
Explanation: It is asking for something which is not a concern with Genetically engineered plants, all the answers except A are concerns dealing with genetically engineered plants.