Answer:
good eco comes from free enterprise 
Explanation:
 
        
             
        
        
        
Broadly speaking, Mercantilism was very good for European countries for a while but terrible for their colonies.
Mercantilism made people in the Old World VERY rich.
But, as a result of the imbalance, the relationship between the European countries and their colonies deteriorated making mercantilism good in the short term but bad in the long term. 
 
        
             
        
        
        
Answer:
Life cycle of the malaria parasite illustrating the various stages that are ... Parasitologists trying to develop vaccines can hardly ever safely grow and ... vaccines for one stage of the life cycle (figure 1) are unlikely to impact on another stage.disappointment as successive, independent field efficacy trials in Africa and Asia .
Explanation:
 
        
             
        
        
        
Biotic is the correct answer