1 While files like these help a computer to pull up websites faster by remembering common images and bits of inâ¦. 2  Crochet 101: Choosing the Right Scarf Size One of the most popular and simple crochet projects for the beginner is a scarf. 3  It is a straightforward pattern that utilizes the same stitch repeated throughout.
clade. n. A grouping of organisms made on the basis of their presumed evolutionary history, consisting of a common ancestor and all of its descendants. [From Greek.lade. n. A grouping of organisms made on the basis of their presumed evolutionary history, consisting of a common ancestor and all of its descendants. [From Greek.
In common cladistic usage, a monophyletic group is a taxon (group of organisms) which forms a clade, meaning that it consists of an ancestral species and all its descendants. The term is synonymous with the uncommon term holophyly. paraphyletic taxon contains its most recent common ancestor, but does not contain all the descendants of that ancestor. Diagram: in cyan, the reptiles A polyphyletic taxon does not contain the most recent common ancestor of all its members.