Proteins, carbohydrates, and fats all contain three main elements <em>carbon, hydrogen, and oxygen.</em>
However proteins contain nitrogen, and element not found in carbs or fats. 
Hope I helped! :)
 
        
             
        
        
        
Answer:
its C option that mitosis is a process by which a parent cell divides into two seperate cells and is responsible for limiting genetic variation.
Explanation:
 
        
             
        
        
        
Answer:
No heart, no blood and no circulation, but plants do need a transport system to move food, water and minerals around. They use two different systems – xylem moves water and solutes from the roots to the leaves – phloem moves food substances from leaves to the rest of the plant
 
        
             
        
        
        
Since Matt has never taken piano lessons but plays like a professional pianist, everyone assumes he acquired the skill through osmosis.
        
             
        
        
        
The correct answer for the question is A. Diffrences in heating