The correct answer for the question that is being presented above is this one: "<span>The law of </span><span>segregation </span><span>is the Mendel’s laws or principles explain that traits are passed from parents to offspring individually instead of as pairs, groups or sets. D</span><span>uring the formation of gametes, two copies of each heredity factors separate out so that the new offspring can get one factor of both the parents.</span>
        
                    
             
        
        
        
Answer:
Veins.
Explanation:
Heart is the main organs of circulatory system that transport blood in the body.Human heart is four chambered and separates the oxygenated and deoxygenated blood in the body.  
Arteries are responsible for the passage of blood from heart to the body parts. The deoxygenated blood from the body collect in the veins and transfer to heart. Arteries has high pressure than veins and veins are thinner than artery.
Thus, the answer is veins. 
 
        
             
        
        
        
Answer:
all of these affect enzyme activity 
 
        
             
        
        
        
<span>B. tiny structures in the cell that carry out the cell's activities</span>