While single-celled organisms can (i) ________ nutrients directly from the environment, multicellular organisms have specialized structures for obtaining and breaking down the food that is the source of necessary nutrients. These digestive systems are composed of multiple functions that (ii) _________ food sources into processable liquid and extract nutrients. The process results in waste, which is expelled from the organism via another, related system.

Blank (i)	Blank (ii)
A. osmose	D. flux
B. exude	E. deliquesce
C. cull	F. coagulate