The chromosomes contain the genetic material which are located in the nucleus 
        
             
        
        
        
Answer:
Im pretty sure its C. But correct me if im wrong
X: Gastropods
Y: Cephalopods
Z: Bivalves
Explanation:
 
        
             
        
        
        
The answer to this is : B, Their roots.
 
        
                    
             
        
        
        
Answer:  D) it is a female with two recessive alleles
Explanation:
Since the shape is a circle, we know it is a female. Since the shape is shaded, we know the posses the recessive trait, meaning they must have two of it's alleles.