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thin-walled or slightly strengthened, elongated phloem cells that conduct food substances.
the tube through which urine passes from the bladder to the exterior.
a pattern of abnormalities found in babies born to mothers who drank excessive amounts of...
the dramatic increases in crop production around the world from the second half of the twentieth...
broad group (taxon) in the biological classification system, which is then divided into kingdoms...
the breakdown of food into smaller pieces by chewing and peristalsis.