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cells that are formed during secondary growth by the vascular cambium ring just to the inside of the primary phloem.
produced, growing, living, or occurring naturally in a particular region or environment.
the deposition or build-up of silt and organic matter on the beds of rivers, dams etc.
the spontaneous movement of molecules, atoms or ions, from an area of higher concentration to an...
the Latin name of an organism, consisting of the genus and the species names.