The optic chiasm is an X-shaped structure formed by the crossing of the optic nerves in the brain. The optic nerve connects the brain to the eye.
 
        
             
        
        
        
Kuppfer's Cell, monocytes, and lymphocytes
        
             
        
        
        
Answer:
A line chat would be the best 
 
        
                    
             
        
        
        
Answer:Succession as progressive change in an ecological community. Primary vs. secondary succession. The idea of a climax community.
Explanation: