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the cylinder of parenchyma found from the centre of the stem to the inside of the vascular bundles.
blood that has no antigens (blood group O) and can be given to a person with any blood group....
secretory tissue in the leaves of plants that secretes water through pores in the epidermis or...
(also called the carina) in birds is an extension of the sternum (breastbone) which runs along...
organisms that are unable to produce their own organic food and must therefore obtain nutrients...
the nervous system outside the brain and spinal column.