Answer:
Theory
Explanation:
It is a substantiated explanation because of the set of facts and observations on the experiment. 
 
        
             
        
        
        
Answer:
panleukopenia
Explanation:
feline distemper is another name for the feline panleukopenia virus or FPV
 
        
                    
             
        
        
        
<span>Facilitated diffusion
Diffusion
occurs because of the movement of molecules from the region of higher
concentration to the region of lower concentration. This movement of
molecules occurs due to a thermal motion. Diffusion normally occurs
between two compartments having difference in concentration. In case of
fluid it moves from the region of higher concentration to the region of
concentration until a balance is reached. The process of diffusion is
very important for the humans as well. The oxygen that humans breathe in
gets diffused with the blood.<span> </span></span>
        
             
        
        
        
D — this is the nature vs. nurture debate