Explanation:
New ocean crust is formed at the mid ocean ridges. The new crust is then pushed away from the ridge as newer crust comes to the surface. The ocean crust then spreads out enlarging the ocean. The farer away from the ridge the ocean crust is the older the crust 
 
        
             
        
        
        
Answer:
For number 3: 
The bacterial cell is a prokaryotic cell and the fungal cell is a eukaryotic cell. 
Explanation:
I cannot see the cells to answer number 4, but for number three, bacteria is a prokaryote and fungal cells are eukaryotes. You can most likely determine this by the presence of a nucleus (a prokaryote cell will not have one where a eukaryotic cell will).
 
        
             
        
        
        
when an animal eats plants they could be eating the carbon.