tyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
 
        
             
        
        
        
I don’t know sorry but you can search on google or safari and see for icivics and it would help you
        
             
        
        
        
Answer:
b
Explanation:
animals need energy to survive basically to breakdown materials too
 
        
                    
             
        
        
        
Answer:
Organ level– an organ is a structure composed of at least two different tissue types that perform a specific function within the body. Examples include the brain, stomach, and liver. Complex functions begin to emerge at this level.
Explanation: