Before a cell divides DNA replicates itself. hope this helps!
        
                    
             
        
        
        
Answer:
Disease and Famine
Explanation:
If there is a disease that affects a type of plant, having other types of crops to rely on could save one from starvation. Also, only planting one crop in an area can change the pH and nitrogen levels in negative ways, so that eventually no plants can grow there. Not to mention the obvious balanced diet needed for a healthy body.
 
        
             
        
        
        
Would it be its beak? It's hard and protective like scales
        
                    
             
        
        
        
Answer:
by measuring and examining a random sample of the population being analyzed.
Explanation:
 
        
                    
             
        
        
        
Pretty sure that the answer is A