A hypothesis about the evolutionary relatedness of a group of organisms is known as a:

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A hypothesis about the evolutionary relatedness of a group of organisms is known as a phylogeny. A phylogeny is a branching diagram depicting the evolutionary relationships among organisms based on similarities and differences in their physical and genetic characteristics. Taxon refers to any group or level of classification in biological taxonomy, such as a family, genus, or species. Analogy refers to similarities between different species that are not due to common ancestry but rather due to adaptive evolution in similar environments. Homology refers to similarities between different species that are due to common ancestry and inherited from a common ancestor.

A Hypothesis About the Evolutionary Relatedness of a Group of Organisms