Answer:
Explanation:
Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body.
 
        
                    
             
        
        
        
Water, Humus, air, plants, organisms , nutrients, particles (inorganic
        
             
        
        
        
Answer:
Hawks and frogs. They both compete for the grasshoppers
Explanation:
 
        
             
        
        
        
After my research the answer is that they are forms of electromagnetic radiation as far as I know.