There is a basic difference, because mass is the actual amount of material contained in a body and is measured in kg, gm, etc. Whereas weight is the force exerted by the gravity on that object mg.
        
             
        
        
        
Answer:
They absorb the food molecules that result from the external digestion.
Explanation:
 
        
             
        
        
        
Such unequal distribution of resources was commonly related to land for agriculture, necessary for population growth.
        
             
        
        
        
Answer:
1 = natural, 2 = Natural, 3 = synthetic, 4 = Natural, 5 = Natural, 6 = Natural, 7 = synthetic 
Explanation:
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