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Esse mapa conceitual, produzido no IHMC CmapTools, tem a informação relacionada a: Intro to Animals - Group 2, Characteristics of Animals ???? Nutrition, Are shared derived characters that help define the Clade Bilateria Clade contains Majority of animal phyla, and its mebers are known as Bilaterians, Ecdysozoa As the animals grows it molts, squirming out of its old exoskeleton and secreting a larger one, There are three major clades of bilaterian Lineage 2 Lophotrochoza, Choanoflagellates Evidence for the most related to animals 2. Collar cells have been identified in other animals, but not in non-choanoflagellete protists, plants, or fungi, Posterior ???? Back, 541-252 million years ago, the cambrian explosion occurred Definition A sudden fossil appearance of many major groups of animals, Recognize about three dozen phyla of extant animals Points that have been made All animals share a common ancetor, Sponges are the sister group to all other animals In Phylum Porifera, Body Cavity True body cavity called Coelem, Choanoflagellates Evidence for the most related to animals 1. Morphologically, their cells and collar cells of sponges are almost identical, Lophotrochozoa develop a unique structure It's called Lophophore, Blastopore becomes the anus In Deuterostomes, 541-252 million years ago, the cambrian explosion occurred Hypotheses regarding the cause 1. New predator-prey relationships, A member of an early group of soft-bodied, multicellular eukaryotes Known as Ediacaran biota, Lophotrochoza The phyla in these clades consist of Invertebrates, The Origin of Animals Animal Kingdom includes Great diversity of living species & an even greater diversity of extinct ones, The coelom forms from splits in the mesoderm Can tell by Protostomes, Belong to the clade called Eumetazoans Basal Eumetazoans Include phyla Ctenophora and Cnudaria, Aceolomates Definition Triploblastic animals that lack body cavity