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(also called pith rays) sections of the medulla that occur between the vascular bundles.
a rubbery, protein-carbohydrate complex that forms the matrix of cartilage.
a blood vessel that carries blood away from the glomerulus and branches to form a capillary...
a graphical representation of the evolutionary relationship between taxonomic groups based on...
(also called secondary meristems) regions of cells capable of dividing to form new cells in the...