
1) Ecology terminology
Found on
https://www.crosswordclues.com/clue/bacterivore

Bacterivores are free-living, generally heterotrophic organisms, exclusively microscopic, which obtain energy and nutrients primarily or entirely from the consumption of bacteria. Many species of amoeba are bacterivores, as well as other types of protozoans. In common, all species of bacteria will be prey, but spores of some species, such as Clost...
Found on
http://en.wikipedia.org/wiki/Bacterivore
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