Question: What is the difference between endogenous opioids and exogenous opioids? Group of answer choices Endogenous opioids are created internally; exogenous opioids are created outside the body. Exogenous opioids produce euphoria; endogenous opioids do not. Exogenous opioids are administered intravenously; endogenous opioids are taken orally. Endogenous opioids are addicting; exogenous opioids are not.