BIOL 2P92 Chapter Notes - Chapter 4: Phylogenetic Tree, Ecological Niche, Synapomorphy

• School: Brock University
• Department: Biological Sciences
• Course: BIOL 2P92
• Professor: Miriam Richards

Document Summary

In hierarchical classiication system, groupings of organisms at a particular taxonomic rank are called: taxa, although species concepts remain controversial, biologists repeatedly rely on what criteria to identify a species? a. b. c. 10. monophyly taxon includes most recent common ancestor of the group and all descendants of that ancestor. 11. paraphyly - taxon includes the most recent common ancestor of all members of a group and some, but not all, descendants of that ancestor. 12. polyphyly taxon does not include the most recent common ancestor of all members of a group.