Answer:
Explanation:
The two lower, larger chambers of the heart are called _ventricles._
 
        
             
        
        
        
Answer:
Kartegener's disorder
Explanation:
The respiratory tract has cilia which move. Sperms also have a tail that moves. They both have the same protein in their structure called microtubules. There is a disorder in which there is the absence of a part in the microtubule. Dynein arms absent in microtubules. Because the respiratory system and sperm both contain cilia that's why these two systems have a connection and not work properly. 
 
        
             
        
        
        
I would say C or D
Hope This Helps
        
                    
             
        
        
        
Answer:
It is the Central nervous system and the Peripheral nervous system
Explanation:
The central is made up of the brain and spinal cord. The peripheral is made up of nerves that branch off from the spinal cord and extend to all parts of the body