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the outermost layer of the plant cell wall that forms the contact surface between adjacent plant cells.
a state in which the body temperature has dropped to dangerously low levels.
unicellular fungi, most of which reproduce asexually by a process called budding.
when the entire heart, both of the atria and ventricles, is relaxed.
the spontaneous movement of molecules, atoms or ions, from an area of higher concentration to an...