Porosity
Porosity refers to the space inside the rock that is taken up by pore space.
        
             
        
        
        
Answer: its b i just got done with it
Explanation:
 
        
             
        
        
        
The pyloric sphincter is compose of smooth muscle and is located between the pylorus in the stomach and duodenum of the small intestine. In digestion, it serves as a valve controlling the flow of food thus it prevents the contents of small intestine backing up into the stomach.
        
             
        
        
        
Answer:
Dihybrid 
Explanation:
A dihybrid cross explores the interaction of two traits in affecting the genotype of the offsping