Sentence:  It cannot be said that one saprobe is more <WSD>saprobic</WSD> than another, even though one produces ten times as many spores as another in the same habitat or one produces no spores in the polluted habitat but countless numbers of spores in the ivory tower of the pure culture laboratory. 
Meaning of the word marked with <WSD> tags:  Of, pertaining to, or of the nature of a saprobe or saprobes; that feeds on dead or decaying organic matter.