Answer:
Mass is the amount of matter in a substance measured in kilograms
 
        
             
        
        
        
False. Oxygen is absorbed in the alveoli sacs of the lungs. 
Upon inhalation Air must first pass through the larynx and down to the trachea, which then splits off into two separate bronchial tubes, the bronchial tubes divide into smaller air passages known as the bronchi and those into even smaller bronchioles. The bronchioles end in tiny sacs called the alveoli which transfer the oxygen from the inhaled air to the bloodstream.
 
        
                    
             
        
        
        
In the DNA structuring, there are four nitrogen bases involved that are combined in a structure containing diffrent bases. Each codon is unique to one another and represents another material. Since the two codons are not exactly the same, the answer is no.
        
                    
             
        
        
        
Answer:
endothermic is the right answer