It would primarily be Medicare but Medicaid also provides relief for the elderly and poor
        
             
        
        
        
Answer:
Adaptation affects the diversity of an ecosystem by helping organisms survive different harsh conditions as well as survive their environment. 
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I think the correct answer is B hope it helped
        
                    
             
        
        
        
Answer:
I'm thinking the answer would be C if not then it would be B
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Compositional layers are determined by their components, while mechanical layers are determined by their physical properties.