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(also called heterotrophic organisms) organisms that are not able to produce their own organic food.
(also called elimination or defecation) the process whereby undigested food remains are expelled...
a relatively small, similar building block of larger molecules (polymers).
thin-walled or slightly strengthened, elongated phloem cells that conduct food substances.
a pattern of abnormalities found in babies born to mothers who drank excessive amounts of...