Answer:
Innate immunity you are born with.
Acquired immunity you need to work on over time
Explanation:
Poison ivy for example. Come people are born immune to it, while others have to be around it a lot, (agonizingly so), and they will build up immunity to it's poison.
 
        
             
        
        
        
One advantage would be fertility
        
             
        
        
        
Answer:
Hydrogen 
Explanation:
I think it is showing cellulose cell or DNA as it is inverted 180° for the option there is no option for Phosphodiester bond however I know the answer is hydrogen. 
 
        
             
        
        
        
Answer:
My sister does not live with my parents
 
        
                    
             
        
        
        
Explanation:
The non living things in its environment is called a " matrix," 
A matrix is what supports a non living thing to reproduce, triple its existence & reproduce in mass quantities, like soil bacteria, and others..