the medical breakthrough introduced by willia...
the medical breakthrough introduced by william morton that allows for painless surgical procedures is called. the scientific theory proposed by charles darwin that species evolve over time through natural selection is called.
Answer
# Brief Explanations:
William Morton introduced ether - based anesthesia for painless surgeries. Charles Darwin's theory of species evolving through natural selection is called the theory of evolution by natural selection.
# Answer:
Ether - based anesthesia
Theory of evolution by natural selection