Question

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the two broad categories of approaches for building a phylogenetic tree are a(n) □-based approach and a(n) □-based approach.
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Explanation:

The two primary broad approaches for constructing phylogenetic trees are:

1. Distance-based approaches: These use genetic distance (overall similarity/dissimilarity values) between organisms to group related taxa.
2. Character-based approaches: These analyze specific discrete characters (like genetic sequences or morphological traits) to identify shared evolutionary changes and build the tree.

Answer:

1. Distance
2. Character