PPT-Mollusks Have soft bilaterally symmetrical bodies composed of a head, foot, coiled mass

Mollusks with two shells are referred to as Bivalves Bivalves Two shells of a bivalve are hinged together at one end and are kept closed by a short tough ADDUCTOR MUSCLE Clams oysters and mussels have two adductor muscles. 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 . Mollusca. 75000 species. 2. nd. only to Phylum . Arthropoda. Includes octopuses, oysters, snails, slugs, squids, clams…. Divided into 6 classes based on shell and foot. Common Characteristics. Shell ~ tough multilayered structure, for protection or body support. Unit 4. Mollusk Introduction. Phylum Mollusca . Molluscus. . = . soft. Soft-bodied animals that usually have an . internal. or . external . shell.. Includes . snails. , slugs, clams, . squids. , and octopi. 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?. 27-1 Mollusks. 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. Prepared by : Nada H. Lubbad. Introduction. :. Soft bodied animals.. - . name from Latin word “ mollus” meaning soft.. The second largest phylum.. The scientific study of Mollusks is . . Over 50,000 species. Coelomate. , . Protostomes. , Bilaterally symmetrical. Mostly marine, although some live in fresh water or land.. Generally soft-bodied with a hard shell. However, squid & octopi have internalized, reduced or lost their shells.. 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, . General Characteristics of Mollusks. 2nd . largest animal phylum ~100,000species. Extremely . diverse, so why are they all classified under the same phylum?. 1) They all start off as a TROCHOPHORE. This . 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.. Amope ™ Pedi Perfect Electronic Foot File Reveal beautifully smooth feet in Just One Use Amope™ Pedi Perfect Electronic Foot File is designed to treat rough, dry, cracked feet quickly and effort DEPARTMENT OF ZOOLOGY. SILAPATHAR COLLEGE. SILAPATHAR. Molluscs . are classified into 6 classes according to their symmetry and the characters of food, shell ,mantle ,gills ,nervous system, muscles and . 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 .