Some ways would be to use less gas-powered items, such as some stoves. Communities can encourage carpools and walking. If you  were to drive, don't gun the gas and drive at moderate speeds. 
In your own home you can conserve energy by turning off lights and electronic devices when not in use.  You could also use energy efficient light-bulbs. 
 
        
             
        
        
        
Answer: The main function of NADH is the formation of energy in the form of Adenine tri phosphate (ATP). 
Explanation: 
In ATP production, the transfer of electron occurs by the NADH molecule. It also necessary for the reaction that occurs in the storage of energy molecules. NADH stands for nicotinamide adenine dinucleotide hydrogen. It produces energy through oxidation reduction reaction. 
 
        
             
        
        
        
Answer no 1 is correct :)
        
             
        
        
        
Answer:
Centrioles are located near the nucleus and help organize cell division.
 
        
             
        
        
        
Because the hydra has a nervous system characterized by a nerve net other than a cockroach