D. Healthier diet and less obesity. 
Explanation: this is because you can’t get cancer just from being fat and every other answer is correct, more likely to get cancer smoking, genetic engineering has drastically changed over the years. An early screening you can find out if you have cancer earlier.
        
             
        
        
        
Skins cell reproduce more because let’s say for example you get hurt and the skin falls off in order to protect you it grows back immediately
        
                    
             
        
        
        
Answer:
Polar Bears feed on seals. So, polar bears and seals share a prey predator relationship.  If one species cannot then adapt an appropriate defense, they may go extinct. In this way, the predator prey relationship often forms and "evolutionary arms race", in which eats species rapidly evolves to counter the other.
Explanation:
Complete the paragraph based on this food web: Polar bears feed on seals. So, polar bears and seals share a _prey predator_.Climate change has caused ice caps to melt in colder regions where polar bears live. This change has caused them to hunt less. This situation will lead to_?extinction?_ 1 prey-predator relationship mutual relationship parasitic relationship. 2 less biomass in the quaternary level increased biomass in the quaternary level less biomass in the primary level. 
If one species cannot then adapt an appropriate defense, they may go extinct. In this way, the predator prey relationship often forms and "evolutionary arms race", in which eats species rapidly evolves to counter the other.
 
        
             
        
        
        
Answer:
B: The virus has a long period of latency