Essay B. Evolutionary trees, or phylogenies, are diagrams de…
Essay B. Evolutionary trees, or phylogenies, are diagrams depicting relationships between a set of organisms or clades. In common language explain how researchers can use nodes to determine how closely related organisms are to each other. In your explanation, please include 3 parts: (a) what does a node represents biologically? (b) how is time oriented on a phylogeny (i.e., where is deep time and where is more recent time)? and (c) what does the position of nodes (i.e., closer to the tips vs. closer to the base of the tree) mean in terms of relatedness of two species?