The correct answer of the given question above would be the third option: THE EVOLUTION OF POPULATIONS OVER TIME. What is represented by the base of a phylogenic tree is the evolution of populations over time. It is also known as the evolutionary tree. This tree shows the evolutionary relationships among species.
Answer:
1. Digital Lab
2.Electronic health records
3.Digital Library
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Explanation:
C. protein. Nitrogen is a component of amino acids which are the building blocks of protein.