InterviewSolution
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                                    Explain why tissue fluid is called the internal environment of the body? | 
                            
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Answer»  Answer: The INTERNAL environment is water-based in which the cells of the body exist. A fluid known as interstitial fluid or TISSUE fluid BATHES the cells. ... Due to the selective nature of the CELL membrane, the intracellular fluidhas a different chemical composition than the interstitial fluid.  | 
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