Untitled 1. Useful Reading Campbell, Biology 6th Ed - Chapters 32 & 33, pgs 633-655, 661-662 Campbell, Biology 7th Ed - Chapter 32 & 33, pgs 626-650, 655-626 Vocabulary Symmetry – general, structured body plan. See radial and bilateral symmetry below. Coelom – fluid-filled body cavity surrounded by mesoderm-derived tissue. Diploblastic – having only two layers of cells during development: the endoderm and ectoderm. Triploblastic – having three layers of cells during development: the endoderm, ectoderm, and mesoderm.
Heterotroph – an organism which gets its energy by ingesting food. Hermaphrodite – an individual which can produce both eggs and sperm. Classification In Kingdom Animalia, all taxa are eukaryotic and lack cell walls, multicellular, and generally heterotrophic. The traditional phylogeny is shown below. Presence / absence of true tissues Type of body symmetry Presence / absence of body cavity (coelom) Pattern of coelom development (acoelomate, pseudocoelomate or true coelomate) 1. 2. A. B. Encyclopedia of Life. Taxonomy Phylogeny. Natural Perspective: Animal Kingdom. The Animal Kingdom is at once the Kingdom most and least familiar to us. Almost all of the animals we commonly think of -- mammals, fish, and birds -- belong to a single subgroup within one of the 33 Phyla comprising the Animal Kingdom.
On the other hand, over 100,000 species in some 25 animal phyla -- mostly small worms -- are so unfamiliar that they are virtually unknown to non-scientists. The same goes for several hundred thousand tiny insect-like species populating the Arthropoda phylum. All told, around 800,000 species have been identified in the Animal Kingdom -- most of them in the Arthropod phylum. In fact, some scientists believe that if we were to identify all species in the tropical rain forests the ranks of Arthropoda would swell to over 10 million species! Spinal Cords (Chordata) All animals having a spine, including fish, mammals, birds, reptiles, amphibians, sharks, and eels are grouped into Chordata.
Joint-Legs (Arthropoda) Soft Bodies = Mollusks (Mollusca) Animalia: Classification. Systematik der Vielzelligen Tiere. Lingula anatina (Beispiel für den Stamm der Armfüßer) Der Mensch Literatur[Bearbeiten] Hynek Burda, Gero Hilken, Jan Zrzavý: Systematische Zoologie. UTB, Stuttgart; : 1. Aufl. 2008, ISBN 3825231194 Einzelnachweise[Bearbeiten] Hochspringen ↑ Herve´ Philippe, Henner Brinkmann, Richard R. Weblinks[Bearbeiten] Integrated Taxonomic Information System. SysTax - database query.