Answer: Pigeon and duck.
Explanation:
From that side of the tree, you can see that the pigeon and the duck are closest together in the tree than the other organisms in the other options.
 
        
                    
             
        
        
        
Answer:
What is population?
A group of organisms of different species interacting with each other and the environment is called populatin.
  
        
             
        
        
        
This is the Definition of coevolution
        
             
        
        
        
Angiosperms have a vascular system and can live is harsher environments which means they can reproduce a lot more often and faster. 
        
                    
             
        
        
        
Answer: I think it id b  But im not positive