U cant adapt to chemical changes
        
                    
             
        
        
        
Answer: It happens when the autonomic nervous system (ANS) doesn't work as it should. The autonomic nervous system is the body's "autopilot" system, controlling things like heart rate, blood pressure, and breathing. (I'm not sure tho)
Explanation:
 
        
             
        
        
        
D since gentics would make you more prone to drink and or have to drink less. same with age.
 
        
                    
             
        
        
        
Answer:
an ear infection, consequence of other previous infection 
Explanation:
In some cases, when the babies start with respiratory infections, the antibiotic can act in the respiratory system, but if there is some bacteria that can travel to the ears and grow over there, it can reproduce and cause an ear infection, as a consequence of a bad treatment of a bad care of the first infection. 
 
 
        
             
        
        
        
Answer:
Gender ratio in the World
 As of 2021, There are 3,970,238,390 or 3,970 million or 3.930 billion males in the world, representing 50.42% of the world population. The population of females in the world is estimated at 3,904,727,342 or 3,905 million or 3.905 billion, representing 49.58% of the world population.