PPT-PORIFERA and CNIDARIA

GERM LAYERS Porifera None cnidaria Two layers Ectoderm Endoderm SYMMETRY porifera No symmetry cnidaria Radial symmetry COELOM A fluid filled cavity in the body Porifera Acoelomate. Group 36: Jessica Penney, . Tonika. Levy, And Kristen Young. Porifera. Sponge. Evolutionary History. Previously assigned to a separate subkingdom, . Parazoa. Closest single-celled relatives are thought to be . Bauplan. (pl. . Baupläne. ) The generalized body plan of an archetypal member of a major taxon.. A . body plan, . baupläne. , ground plan, ground pattern. , or . bodyplan. , is "an assemblage of morphological features shared among many members of a phylum-level group". Phylum Species Placozoa 1 Demospongia 8000 Hexactinelida 1000 Calcera 1000 Cnidaria 9000 Ctenophora 100 Myxozoa 1200 Rotifera 1800 Acanthocephala 1150 Cycliophora 1 Entoprocta 150 Platyhelminthes 1378 BSC 2011L. Kingdom Animalia. All animals are multicelluar and heterotrophic . Some means of locomotion. Always diploid. Animal Taxonomy. Domain . Eukarya. Kingdom . Animalia. Invertebrates. Parazoa. – no true tissue layers. When Carl Linnaeus first created his method for organizing animals, he had just two families of invertebrates:. . Insecta. (insects) and . Vermes. (worms).. Since that time, scientists have found more invertebrates and have created more classifications. We will talk about six main categories or families of invertebrates.. (pore bearers). pages 664 to 667. Sponges. YouTube - The wonderful world of the sea sponges- The Abyss- BBc Wildlife. Sponges. Scuba sponge. Glass sponge. Variety. Unidentified sponge. Phylum Porifera. Essential Question: What is a cnidarian?. What are cnidarians?. Soft-bodied, carnivorous animals that have stinging tentacles arranged in a circle around their mouths.. Cnidocyte. - stinging cells. Nematocyst-. CNIDARIA. (jellyfish, anemones, corals). Porifera. Cnidaria. Ctenophora. Platyhelminthes. Rotifera. Nematoda. Nemertea. Mollusca. Annellida. Arthropoda. Bryozoa. Phoronida. Brachiopoda. Echinodermata. Laboratory 27 & 28. Introduction to Invertebrates. An . invertebrate. is an animal without a backbone. . The group includes 95% of all animal species. Introduction to Invertebrates. There is no escaping the invertebrates!. Porifera,Cnidarians,Rotifera. By: Amin Syed and Marwa Saleh. PORIFERA- THE SPONGES. Sponges lack . symmetry but very few small sponges are radially . symmetrical. Poriferas . are multicellular which means that their cells are specialized for different functions of the . a.k.a. “Pore bearers,” or sponges. http://www.southerncrafter.com/Bath Puff Sponges Assorted.gif. http://www.southerncrafter.com/Bath Puff Sponges Assorted.gif. Campbell, Neil A., and Jane B. Reece. . Venus’s Flower Basket w/ . Wedding Shrimp. Porifera. I. Considered simple animals as they consist of many cell types with special . functions. & they lack . tissues . and . organs. . . II. Their skeleton can be composed from . Phylum Porifera Invertebrates There are 2 Types of animals Vertebrates : Animals with backbones. Invertebrates : Animals without backbones. * About 97% of all animal species are inverts. Kingdom Porifera. . . Pressence. of Pores : . ostia. and . Osculum. . Cellular level of . Organisation. .. Pressence. of . Asconoid. or . Syconoid. or . Leuconoid. canal system.. Endoskeleton is formed of .