Answer: Emergent norm theory
Explanation:
Emergent norm theory is defined as the concept in which collective behavior is described. The theory also has some instances which has led to conflicts and violence in some cases but also proves to be a good cause in other matters.People are gathered in the form of crowd to display collective action towards the sudden crisis.
It consist of four forms i.e.- crowd ,mass,social movements and public. Turner and Killian are the researchers that tend to investigate about the norms development when people interact in crowd.
 
        
             
        
        
        
There were more than 5 foods that took part in the Columbian Exchange and travelled from the Old to the new World. 
Some examples are: Cytrus fruits (lemons, oranges), bananas, apples, cofee, onion, rice, peach, olive  carrot,  garlic, sugarcane and watermelon
        
                    
             
        
        
        
Answer:
recognition; stabilized                     
Explanation:
Recognition: In psychology, the term "recognition" is described as one of the forms of remembering that is being characterized by an individual's feelings of similarity when he or she has experienced something formerly is being encountered again and in those scenarios, a particular response can be identified when he or she is presented with it yet it might not be reproduced without such stimulus. 
In the question above, the correct answer is recognition test.