What are you trying to ask?
 
        
             
        
        
        
The answer is ‘behavioral isolation’. It is a form of
sympatric speciation - which occurs even when
species live in the same habitat. In this case,
the individuals in the population are isolated by differences in mating and probably different mating rituals. 
 
        
                    
             
        
        
        
Answer:
The best time to see the Great Migration is during the dry season, between July and early October. It's warm, weather is stable, and animals are abundant. The sparse vegetation and dried-up waterways force the animals to head up north to find food and drink.
Explanation:
 
        
             
        
        
        
Answer:
A closed circuit doesn't allow the flow of electrons. an open circuit does. example: if you turn off a switch in your house. you 'broke the circuit it is closed.
 
        
             
        
        
        
A statement that would be least likely used too describe variation is 
“Variation is something that moves” 
That is a least likely description.