Professionals that study and make predictions about human population are called demographers.
 
        
             
        
        
        
<span> the answer is commensalism</span>
        
             
        
        
        
Answer:
The correct option is <em>A. decline, overshoot</em>
Explanation:
Carrying capacity can be described as the maximum number of a particular population size that an ecosystem can hold. The resources such as food, water, space etc are enough for a specific number of species. Sometimes, when a population diebacks, there are more number of resources present than the consumers, so the consumers start to reproduce and expand. The population of these organisms then might overshoot the carrying capacity.