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the process of removing salt and other minerals from seawater, to make it drinkable.
small structures found in the jaw that are used for biting and chewing food.
(also called egestion or elimination) the process of passing faeces out through the anus.
compounds such as lipids, carbohydrates, proteins, nucleic acids, vitamins, petrochemicals and...
simple chemical substances needed by the body in relatively small amounts for normal growth and...