harmless, common, facultative, many, living, true, most, ordinary, fast, ubiquitous, obligate, certain, environmental, various, normal, nonpathogenic, aquatic, strict, primary, partial, aerobic, fungal, pure, numerous, secondary, mere, pathogenic, anaerobic, called, antagonistic, simple, inhabiting, dwelling, obligatory, putrefactive, innocent, competitive, innocuous, leafless, bacterial, invading, typical, phanerogamic, heterotrophic, intestinal, bacteria, uncanny, terrestrial, chromogenic, vulturine, microbial, colourless, growing, subterranean, inert, colorless, commonest, benign, half, monocotyledonous, loving, cosmopolitan, filamentous, borne, known, omnivorous, specialized, widespread, semi, humus, sero, vigorous, responsible