The sentences that make sense are "Volatile liquids are flammable" and "Liquids burn easily."
 
        
                    
             
        
        
        
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Answer:
Explanation:
If you think of the double helix structure as a ladder, the phosphate and sugar molecules would be the sides, while the bases would be the rungs.
 
        
                    
             
        
        
        
Cellular respiration is the process cells use to make energy. Cells in our body combine glucose and oxygen to make ATP and carbon dioxide. Cellular respiration starts with glycolysis, where glucose enters the cell, is converted to pyruvate, and makes a few ATP and NADH.