Um is there answers like u chose one  a b c or d and if so what and i think i know the answer
        
             
        
        
        
Diseases like the one destroying humanity right now impact human populations by taking away a considerable amount of people away. This can be arguably effective in tackling overpopulation in places like India and China, whilst negatively affecting places like the USA, which could lead to higher immigration and more problems
        
                    
             
        
        
        
Answer:
a
Explanation:
sports anemia is a false anemia and a beneficial adaptation to aerobic exercise, caused by an expanded plasma volume that dilutes red blood cells.