The statement that indicates "monophyletic refers to a given taxon which includes an ancestral species and all descendants" is TRUE.
A monophyletic group is a taxonomic group composed of an ancestral species and all descendants of such species.
Monophyletic groups form specific branches of biodiversity that can be diagramed in the tree of life.
These diagrams represent evolutionary relationships and they are called cladograms (phylogenetic trees).
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