<h3>Answer:</h3><h2>A Reaction is the rate rate which increases with a decrease in temperature.</h2>
It can be physical or chemical; a physical reaction is the one which occurs as a result to an event i.e. anger, happiness, excitement etc. Where as a chemical reaction is illustrates the process a chemical behaves when mixed with another substance.
 
        
        
        
They are all live organisms
        
             
        
        
        
All living things are made up of cells.
        
                    
             
        
        
        
"Connective", 
Hope this helped :)