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emitting (or giving off) radiation energy, which is harmful to living organisms.
wild animals from tropical forests that are captured or killed for food or traditional medicine...
a mixture of enzymes and other substances secreted by the exocrine cells of the pancreas.
simple epithelium with elongated, cells that lines the stomach, small intestine, urethra, vas...
in plants: the structure within a seed that will develop into the new plant.