PPT-Mollusks

Phylum Mollusca Includes snails and slugs oysters and clams and octopuses and squids Bivalves Nautilus Softbodied invertebrate Covered with protective mantle that may or may not form a hard . Diatoms Flagellates Rotifers Green algae Calanoids Cyclopoids Mollusks Chironomids Gammarus Round Goby Rainbow Trout Burbot Lake Trout Smallmouth Bass Walleye Lake Erie Food Web White Bass NOAA, Great Global location’s. In the world there are Coral Reefs in. Southeast . Asia . The . Pacific including . Australia.. And in the . Atlantic and . Caribbean. Temperature and . Precipitation . ranges. . 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 . Phylum Mollusca. Ch. 12 – . Molluscan. Success. Mollusca = “Soft Bodied” (Latin). Phylum Mollusca . ~555 Million Years Ago. Molluscan. Characteristics. Range in size and body shape. Largest . 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.. 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. 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. 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.. 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.. 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. . 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 . PHYLUM MOLLUSCA. ___________________________________are . all mollusk. . There is a wide variety of animals in this phylum—from the . slug. that moves very slow to the . squid. who is jet-propelled. . 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 .