[CHEMICAL VARIABILITY OF THE INTERNAL ENVIRONMENT OF THE ORGANISM AND ITS EVOLUTIONAL SIGNIFICANCE].
D005075:Biological Evolution; D004777:Environment; D008660:Metabolism; D010507:Periodicity; D012106:Research; D012621:Seasons
EVOLUTION; EXPERIMENTAL LAB STUDY; METABOLISM; PERIODICITY; SEASONS
KHIMICHESKAIA IZMENCHIVOST' VNUTRENNIKH SRED ORGANIZMOV I EE 'EVOLIUTSIONNOE ZNACHENIE.