The mouth? MARK THE PERSON THAT SAID THE ANSWER FIRST BRAINLIST IM JUST HELPING HER/ HIM PLS MARK THEM BRAINLIST
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heart rate..................
Answer:
The biggest breakthrough came in 1921 when Frederick Banting and Charles Best conducted a series of experiments one summer in the laboratory of J.J. R. Macleod at the University of Toronto. Like Minkowski and von Mering, they showed that removing the pancreas from dogs made them diabetic.
Explanation: