Starch is present in saliva. 
I don't know which food choice you made so I can't explain why you got the results you did.
        
                    
             
        
        
        
Answer:
Classification is a systematic ordering of the object of research, in this case, ecosystems at the earth's surface or, in other words: landscape units as 'holons'. As for general principles of classification, we can learn a lot from the best-known classification, the taxonomical classification of species.
Explanation:
 
        
             
        
        
        
He did not take in to account for wind currents and the fact that CO2 or the carbon stays in the air
        
                    
             
        
        
        
The ions move from zones of high concentration to zones of lower concentration