Short Answer
Comparing DNA sequences from living taxa and calibrating their rates of change with at least one well-dated fossil allows scientists to create time-calibrated trees with minimum and maximum age estimates for all branch points.Such studies are called ________ [two words] studies.
Correct Answer:

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Correct Answer:
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Q19: The accompanying figure shows the results of
Q20: Which of the following is NOT one
Q21: Which of these is a niche that
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