Well a cell is like a car because each cell has a distance to go to. one cell has to drive all the way from your finger to your brain to let u know whats wrong. if there's pain or num. it also do other things to like a blood cell has to drive every part of your body to give oxygen. it has so many places to go to.<span />
        
             
        
        
        
Chlorine-the chemical element of atomic number 17, a toxic, irritant, pale green gas
atomic number-the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
        
             
        
        
        
C planting trees. It adds oxygen
        
                    
             
        
        
        
Answer:
Cell,tissue,organ,organ system
Explanation:
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