Crossword clues for the word: ANAEROBES The word ANAEROBES has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for ANAEROBES Showing 1 to 6 of 6 results Clue(s) "Bacteria, e.g." Many gastrointestinal tract residents Microorganisms that don't need oxygen Organisms not needing oxygen Organisms that don't need oxygen They don't need oxygen to live