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plant-like organisms that live and grow in water; they make their own organic food by the process of photosynthesis.
chemicals used as the propellants in aerosol sprays, as coolants in fridges, air conditioners...
large blind-ending sac forming the first part of the mammalian large intestine, to which the...
organisms that feed on dead organic matter and thereby release nutrients back into the soil.
(also called renal failure) the condition in which the kidneys are no longer able to function...