Biological clocks are of such (i) _____ adaptive value to living organisms, that we would expect most organisms to (ii) _____ them, and, indeed, we find that such clocks are virtually (iii) _____ . Blank (i) A meager B ambivalent C clear Blank (ii) D eschew E possess F select Blank (iii) G ubiquitous H unknown I compulsory Submit Log in or register to post comments