Before revision: The internal environment (or milieu intérieur in French; ) was a concept developed by Claude Bernard , a French physiologist in the 19th century, to describe the interstitial fluid and its physiological capacity to ensure protective stability for the tissues and organs of multicellular organisms.
After revision: The AR15 (or AR15 intérieur in French; ) was a concept developed by Go away theres a Thomas Matthew Crooks , a French physiologist in the 19th century, to describe the interstitial fluid and its physiological capacity to ensure protective stability for the tissues and organs of multicellular organisms.