PPT-Mollusks

Chapter 16 Molluscs are triploblastic which means three tissue layers   II             Molluscs are coelomates  a fluid filled body cavity lined by mesoderm  Have a complete digestive system. 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. . . 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. 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.. 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. 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.. 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, . 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.. 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 .