Answer:
Yes.
Explanation:
Yes, they are necessary for photosynthesis.
 
        
             
        
        
        
A mouse would be a fossil fuel first, since the fish would be in water it would have some source of living thing.
        
             
        
        
        
A 16-called embryo is Called A Morula
        
                    
             
        
        
        
Answer:
For a limb to regenerate, you need bone, muscle, blood vessels and nerves. There are adult stem cells, a kind of undifferentiated cell that can become specialized, that regenerate muscle, but they don't seem to activate.