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facing away from the stem (the lower surface of a leaf).
living ground tissue with thick-walled cells that gives strength, support and protection to a...
the process whereby a particular change causes a response which reverses that change.
a lateral meristem in the vascular tissue of plants. The vascular cambium is the source of both...
the process whereby water and small molecules dissolved in the blood are forced out of the...
tissue that covers the surfaces of the body (the skin) and lines the ducts of the gut.