Answer:
is the spread of something more widely 
Explanation:
 
        
                    
             
        
        
        
Water is produced when electron transport chain.
        
             
        
        
        
Answer:
In anaerobic respiration, which occurs during fermentation, less energy is extracted — only two ATP molecules per glucose molecule — because the products of the process, such as ethanol or lactic acid, contain more energy than does carbon dioxide, the product of aerobic respiration
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The answer is A, and this is true because trauma can not be transmitted or caught by humans or animals but a virus , faulty nutrition & congenital defects can. hope this helps :)