Answer:
, donner un exemple de deux plaques divergentes ,et de  deux plaques convergentes
??
Explanation:
 tprenna
 
        
             
        
        
        
I believe it is temperature or rainfall. All of the factors are improtant but temperature comes first, cuz the temperature can also determine the air, and soil doesn't make a difference. Longitude doesn't have to do with an ecosystem.
        
                    
             
        
        
        
Answer AND Explanation:
 Complete dominance, independent assortment, no gene interaction