Below you will find the solution for: The first one of these discovered in the human body was secretin produced by the small intestine in 1902 Jeopardy .
Since you already solved the question The first one of these discovered in the human body was secretin produced by the small intestine in 1902 which had the answer A HORMONE, you can simply go back at the main post to check the other answers. You can do so by clicking the link here Jeopardy April 08 2021
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