Crossword clues for Biological units. 5 letters:CELLSBiological units.MONADBiological unit.GENEBiological unit.CELLBiological unitGENEMolecular biology unitTUFT___ cells (biological units whose projecting microvilli resemble small bunches of hair)GERMCELLBasic unit in biology.EGGReproductive unit in biologySWEATGLANDBiological cooling unitCELLStructural unit, in biology.