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the process of moving organic material via the phloem sap.
disease caused when the arteries that supply the heart muscle become narrowed or blocked by the...
primitive type of fish that lives very deep underwater and has four leg-like fins. It is thought...
the process of removing salt and other minerals from seawater, to make it drinkable.
inflammation of the lining of the bronchi and bronchiole causing them to become clogged with...