Part D The idea of molecular clock genes has been studied for decades, but the hypothesis remains a controversial
topic in evolutionary biology. Why do you think that is the case? What are three questions you still have
about the use of molecular clocks?

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explanation:

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.