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large startery, it carries oxygenated blood around the body.
undifferentiated and unspecialised actively dividing cells in the growth regions of plants, such...
the natural resistances with which a person is born. It occurs because of a body's genetic make-...
a group or category in the biological classification system (the plural of taxon is taxa).
thin-walled or slightly strengthened, elongated phloem cells that conduct food substances.
minute pores in the epidermis of a leaf or stem which allows for movement of gases and water...