Internal environment = internal environment is water base medium
. Cell all around in fluid called tissue fluid or interstitial fluid. Cell absorb. Oxygen and nutrition from surrounding interstitial fluid.
Hemostasis= the term simply mean is unchanging. Constant control of external environment.
Internal environment is the environment where cells are present & space around the cells is filled with tissue fluid or interstitial fluid.
Homeostasis means the internal environment will remains constant or unchanged within the range.