the hygienic removal of human waste.
kidney failure which develops over a long period of time.
the liquid found in the pleural cavity that acts as a lubricant.
a collection of similar cells that have the same origin.
minute pores in the epidermis of a leaf or stem which allows for movement of gases and water...
(also called the carina) in birds is an extension of the sternum (breastbone) which runs along...
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