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reactions in which large complex molecules are broken down to form smaller,simpler molecules;these reactions usually release energy
the tube through which urine passes from the bladder to the exterior.
a substance, usually a liquid, in which other substances can dissolve.
unicellular organisms that contain a true nucleus and membrane bound organelles. All protists...
the form in which excess glucose is stored in the liver and muscles of mammals.
tissue that makes up the majority of the plant body and performs various functions.