Insects I believe because worms are insects
        
                    
             
        
        
        
Answer: b
Explanation:
no environmental exposure has been proved
 
        
             
        
        
        
The feather fell slower because it encountered more air resistance.
        
             
        
        
        
When blood ph is above normal range, it is a condition called, alkolosis. When blood ph is below the normal range, it is a condition called acidosis.
I hope this helps :)