True, centrioles can be found in animal cells
        
             
        
        
        
Explanation:
"Function of a reservoir in a nutrient cycle is to meet the deficit which occurs due to imbalance in the rate of influx & efflux. Give an account of energy flow in an ecosystem."
 
        
                    
             
        
        
        
Letter B is correct answer that what I am thinking
        
             
        
        
        
Explanation:
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. 
cells are bigger than atoms. We can see cells with a microscope. Just as atoms have smaller parts called protons, neutrons, and electrons, cells have smaller parts, too. When you look at cells with a powerful microscope, you can clearly see hundreds of them.