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units of measurement of energy supplied by food.
an allergic reaction that triggers the immune system causing constriction and inflammation of...
an infectious disease that can be spread or transmitted from one person to another.
the medical condition whereby the body is unable to control the levels of glucose in the blood...
a chemical messenger produced and released by a cell or a gland in one part of the body of the...
the water that is found underground in soil pore spaces and in the cracks and spaces within rock...