All of the chemical reactions in an organism required to sustain life
        
                    
             
        
        
        
It would be a catalyst. They help increase the rate of chemical reactions.
        
                    
             
        
        
        
Bat wings are made of a rubbery substance while eagles wings are covered in feathers
        
             
        
        
        
Answer:
Orchids have some unique features which help them in the evolutionary race. They produce masses of pollen (which improves the chances of pollination), very light seeds (which makes them easier to spread) and can grow on other plants using them to support their own growth.
 
        
             
        
        
        
Answer:
Cornstarch.
Explanation:
in most cases food scientist may choose to either use cornstarch or flour to thicken their food.