How is epithelium classified, and what are its functions? Why are mesothelium and endothelium considered separately from other types of epithelium?

Which set of symptoms describes the short term effects of marijuana

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Insulin is a peptide therapeutic used to manage type 1 diabetes, which affects more than 20 million people worldwide according to the international diabetes federation. a significant limitation to the broad distribution and use of insulin to treat type 1 diabetes is the fact that it must be administered by injection rather than orally. why is insulin administered by injection and not orally?