2 puzzles · Browse all puzzles
EXTREMOPHILE, THERMOPHILE, METHANOGEN, MANGANESE, BACTERIA, TUBEWORM, ARCHAEA, MICROBE, SULFIDE, SULFUR, IRON, VENT
ACTINOMYCETE, DECOMPOSER, METABOLIC, BACTERIA, PROTOZOA, NEMATODE, ORGANISM, NUTRIENT, NITROGEN, ARCHAEA, MICROBE, PROTEIN, CULTURE, FUNGUS, ENZYME, CARBON, ALGAE, SPORE, YEAST, MOLD