Answer:
RNA because it is single-stranded and contains the sugar ribose.
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Answer: Base: a substance that produces hydroxide ions  when dissolved in water. Bases have a pH greater than 7. A base is any substance that dissolves in water and produces hydroxide ions, Hydrochloric acid  is a STRONG acid because it completely dissolves into H+ and Cl- ions in water.
Explanation:
 
        
             
        
        
        
Breathing rate is controlled by breathing in co2 into your lungs and breathing out co2 hope this helps
        
                    
             
        
        
        
If going to be the first one home boy