Answer:
Taxonomy 
Explanation:
Taxonomy is the science of naming, defining and classifying groups of biological organisms on the basis of shared characteristics. 
The principal ranks in modern use are domain, kingdom, phylum, class, order, family, genus and specie
 
        
             
        
        
        
Answer:
Explanation:
attempted to control their population growth
 
        
             
        
        
        
B because when the positive feedback happens it increases the temperature and when the negative feedback occurs the temperature lowers itself