most of a atoms mass is in the nucleus of the atom:) hope this helps you
 
        
                    
             
        
        
        
The small intestines give nutrients to the blood
        
             
        
        
        
Answer:
a algae
Explanation:
it lives there in the ocean
 
        
             
        
        
        
Producers get the energy they need from the sun. Consumers get their energy from the plants and animals that they eat. Decomposers get energy from eating dead plants and animals.<span />