PPT-Phylum Mollusca

Unit 4 Mollusk Introduction Phylum Mollusca Molluscus soft Softbodied animals that usually have an internal or external shell Includes snails slugs clams squids and octopi. OCTOPUS FACT SHEE T KINGDOM: Animalia PHYLUM: Mollusca CLASS: SUBCLASS: Coleoidea SUPERORDER: Octopodiformes ORDER: Octopoda (Leach, 1818) The octopus is a cephalopod of the order Octopoda that inhab The . mollusks. are invertebrate animals known as . Mollusca. . . There are more than 150,000 species within this phylum.. Types of Molluscs. snails . clams . squid . cuttlefish . octopus which are among the most neurologically-advanced invertebrates. Review. At first, limit your learning to the features that are . unique. to a group and/or groups that “. invented. ” features or had “. firsts. .”. Use the characteristics given to name the group.. Subject. -Zoology. Chapter. -. Phylum . Mollusca. Phylum Mollusca. Phylum Mollusca. Protostomes. Lophotrochozoan group . Eucoelomates (coelomates). Tridacna squamosa. Tridacna gigas. Phylum Mollusca. Phylum Mollusca. 2. Phylum Mollusca. Polyplacophora. Gastropoda. Bivalvia. Scaphopoda. Cephalopoda. Phylum Mollusca. 3. Molluscs. Have adapted to a wide variety of habitats. Terrestrial, marine, benthic, and accomplished swimmers.. Invertebrates. Chapter 6. Marine Ecology. Mr. Seifert. Cnidaria. Sponges. Platyhelminthes. Nematoda. Mollusca. Annelida. Annelida. General Characteristics. Segmented Worms. Hydrostatic Skeleton. Setae. Molluscs. BSC 2011L. Phylum Annelida. Segmented worms. Circular and longitudinal muscles work against fluid filled . coelom. to produce changes in width and length. Digestion – complete. Circluation. Class. Order. Family. Genus. Species. Mammalia. Aves. Primates. Carnivora. Hominidae. Hylobatidae. Homo. Hylobates. sapiens. antecessor. Chordata. Arthropoda. Insecta. Arachnida. Hymenoptera. Isoptera. 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!. More species (200,000 ) than any other animal phylum except Arthropoda. Soft body – often protected by CaCO. 3. shell. Unsegmented, typically bilaterally symmetrical. I. Phylum Mollusca. ©2004 Amanda Demopoulos. Bilaterally symmetrical (Bilaterally asymmetrical in some). Unsegmented. Usually has a definite head (. cephalized. ). Protostomes/. Spiral Cleavage. Coelom mainly a heart cavity. Characteristics of Phylum Mollusca. https://. www.youtube.com. /. watch?v. =_2iXHBuSIJY. Phylum Mollusca, Class . Gastropoda. Phylum Mollusca, . Class . Cephalopoda. https://. www.youtube.com. /. watch?v. =os6HD-sCRn8. Phylum Annelida. : . Polyplacophora. . Chiton . sp. . 1. Mostly . marine. , attached to rocks near the sea shore. . 2. The body is . oval . in shape, . convex above and flattened below. A. . Bilateral. Symmetry. B. Presence of a muscular . foot. C. . Mantle. formed by Dorsal Body wall. D. True . Coelom. E. Complex . Digestive. System. F. . Gas exchange . through gills, lungs, mantle, or body surface.