BIO153H5 Final: BIO153 Final Exam Review Winter 2015- Chapter 26
Document Summary
Bio153 final exam review winter 2015 chapter 26. Analogy: similarity between two species that is due to convergent evolution rather than to descent from a common ancestor with the same trait. Basal taxon: in a specified group of organisms, a taxon whose evolutionary lineage diverged early in the history of the group. Binomial: the two-part, latinized format for naming a species, consisting of the genus and specific epithet; a binomen. Branch point: the representation on a phylogenetic tree of the divergence of two or more taxa from a common ancestor. A branch point is usually shown as a dichotomy in which a branch representing the ancestral lineage splits (at the branch point) into two branches, one for each of the two descendant lineages. Clade: a group of species that includes an ancestral species and all of its descendants. Cladistics: an approach to systematics in which organisms are placed into groups called clades based primarily on common descent.
