PPT-Chapter 27 Worms and Mollusks

271 Flatworms What is a Flatworm What are some of the defining features of flatworms What is a flatworm Flatworms are soft flattened worms that have tissues and internal organ systems They are the simplest animals to have three embryonic germ layers bilateral symmetry and . Welcome to Discovery Education Player. Characteristics of flatworms. Soft, flattened worms with tissues and internal organ system. Simplest animals to have three embryonic germ layers. Bilateral symmetry . Chapter 35 . Examples with Scientific Names. Scientific Name Common Name. Mollusks:. Athleta toumeyi. . Fossil Gastropod. Caprinuloidea. perfecta. . . ACTION AGAINST WORMS www.who.int/neglected_diseases/en/ ACTION AGAINST WORMS IMPACT ON HEALTH Of all the body A. ffecting Reef Growth. Constructive Agents . “Reef Builders” . Organisms that secrete the calcium carbonate skeletons that form the reef. Examples: . Calcareous Corals. Coralline Algae. Crack Fillers. Tough Softies!. Kingdom: . Animalia. Phylum: . Mollusca. . (Mollusks). Class: . Bivalvia. . (Bivalves). Class: . Cephalopoda. . (Cephalopods) . Class: . Gastroboda. . (Gastropods). Mollusca. is the second most diverse (second most number of species) phylum in the animal kingdom!. Sarah . Whitebloom. Matt Jones. Eddie Frere. Objective: SWBAT describe what a mollusk is, the different types of mollusks, examples, and their functions . Warm-Up. What is a mollusk?. What are the 3 types of mollusks?. Lesson 3: How do we classify invertebrates?. Opening Activity. ·. Open Science textbook to page 18.. ·Open Science Workbook to page 5A to review home learning.. ·Open Science folder to review vocabulary words and outline for the chapter.. Mollusks. Characteristics of Mollusks. These are soft-bodied invertebrates, have bilateral symmetry, and usually 1 or 2 shells. . Most mollusks live in water, but a few live on land.. Examples are: snails, clams, and squid. . Phylum Mollusca. Includes . snails and slugs, oysters and clams, and octopuses and squids. .. Bivalves. Nautilus. Soft-bodied. invertebrate. Covered with protective . mantle. that may or may not form a hard, . Characteristics of Mollusks. Mollusks are invertebrates with soft, . unsegmented. bodies that are often protected by a hard outer shell.. They also have a thin layer of tissue called a . mantle. that covers its internal organs.. Animals without backbones Grade 4 invertebrates Invertebrates do not have a backbone. Most animals on Earth do not have backbones! Symmetry: when two parts of an object are identical along an imaginary dividing line. The worm you are most probably familiar with is…….. . THE EARTH WORM. Where can worms be found?. Most worms can be found at the bottom of the water column, near ocean sediment.. Some live closer to the surface.. I. What is a Mollusk?. A. Phylum . Mollusca. Origin: from Latin . Molluscus. = soft. B. Contains animals that look and act very differently from each other. C. Mollusks: Soft-bodied animal that have an internal or external shell. Includes . snails and slugs, oysters and clams, and octopuses and squids. .. Bivalves. Nautilus. Soft-bodied. invertebrate. Covered with protective . mantle. that may or may not form a hard, . calcium carbonate shell .