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the most common and most movable type of joint in the body of a mammal e.g. the elbow.
a very long time span in the Earth's history, covering tens or hundreds of millions of years....
modified phloem parenchyma cells that help translocate food substances in the plant.
a thin hairlike outgrowth of an epidermal cell of a plant root that increases the surface area...
the active maintenance of the correct balance of water and solutes in the blood and tissue fluid...