D - Allow pH to change drastically.
The reason that we have buffer in our system is to protect AGAINST sudden change of pH
Answer:
more force needed would be fulcrum at 12 with nickle at 1 the one closest to the nickle would go the furthest
Breaking down food into smaller molecules. Absorbsion of nutriets taking place in the small intestine and elimination of waste products through the large intestine/ Colon