These comparisons are the basis of phylogenetic systematics. Similarities and differences in adult shape and form, as well as the developmental pattern of embryos, provide the framework for modern taxonomic classification. These plans can be used to define taxonomic groups (usually phyla) and to construct hierarchical classifications within groups (organisms with similar body plans tend to be more closely related). Biologists have long observed that anatomy and embryology reflect shared underlying structural plans. All members of a particular group share the same body plan at some point during their development -in the embryonic, larval, or adult stage. Another name for these similarities is ba üplan, which is the German word for "body plan."Ī body plan is a group of structural and developmental characteristics that can be used to identify a group of animals, such as a phylum. The term "body plan" refers to the general similarities in development and form and function among members of a particular phylum.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |