41. INVERTEBRATE & VERTEBRATE Please be sure to review the various invertebrate groups (sponges, cnidarians, mollusks,worms, and arthropods) in addition to the various vertebrate groups http://www.shs.d211.org/science/faculty/j1l/137/Worksheets/Review Guide Files/in

Study Guide REMEMBER THE EXAM IS THIS TUESDAY! This exam covers the entire unit on invertebrates and vertebrates. Please be sure to review the various invertebrate groups (sponges, cnidarians, mollusks, worms, and arthropods) in addition to the various vertebrate groups (fish, amphibians, reptiles, birds, and mammals). Key facts about INVERTEBRATES Invertebrates DO NOT have a backbone. They are part of the ANIMAL KINGDOM. Characteristics of the animal kingdom: Multicellular and Heterotrophs All animals have shape. We describe this shape as symmetry. Animals are either asymmetrical, have radial symmetry or have bilateral symmetry. Asymmetrical: No symmetry is present. There is no way to divide the animal into equal parts. Below is an example of something that is asymmetrical. Notice that there is no way to divide the sponges into equal parts. The simplest invertebrates in the animal kingdom are the SPONGES. SPONGES: Symmetry: NO SYMMETRY! We call this asymmetrical Key facts: Adult sponges can not move. They are FILTER FEEDERS that use COLLAR CELLS to move water through their sponge bodies.

42. Biology Notes: Chapter 23 23.1 – sponges, cnidarians, and Simple worms • sponges do not move filter water to obtain oxygen and food “skeletons” made of spicules http://www.terrebonnehigh.com/science/biol1n23.htm

Syllabus Notes Practice Tests BIOLOGY Ch 23 - Animal Diversity 23.1 – Sponges, Cnidarians, and Simple Worms • Sponges: > do not move > filter water to obtain oxygen and food > “skeletons” made of spicules > reproduce sexually and asexually • Cnidarians: > Examples: jellyfish, hydras, corals, sea anemones > Have a gut open to the outside > Have tentacles with nematocysts (stinging cells) • Flatworms: > Ex. fluke, tapeworm > Most are internal parasites > Can regenerate asexually • Roundworms: > Called nematodes > Most are parasitic > Most reproduce sexually > Some, like Ascaris, can cause diseases in animals and humans 23.2 – Mollusks, Annelids, and Arthropods • Mollusks: > There are 3 classes of mollusks: Bivalvia – clam, mussel, oyster Gastropoda – snail, slug; feed with a rough tongue called a radula Cephalopoda – squid, octopus, nautilus > They were the 1st animal to evolve nephridia to collect and discharge waste. > They have 3 basic body parts: head, foot, visceral mass.

43. Résultat Recherche Bio Netbook [ Autres Invertébrés ] Translate this page Animal WWW Links sponges, cnidarians, Bilaterians, Flatworms, Pseudocoelomates, Coelomates ettutoriels,Zebrafish,autres invertébrés http//worms.zoology.wisc http://www.pasteur.fr/cgi-bin/biology/bnb_s.pl?bool=et&org=autres invertébrés

44. Howcomyoucom.com - Organism Links Shale Introduction to Chaetognatha (Arrow worms) Diagram of Viruses, Unicellular Eukaryotes,Plants, Fungi, sponges, cnidarians, Bilaterians, Lophotrochozoans http://www.howcomyoucom.com/organismlinks.htm

Organism Links Homepage Back to Earth's Earliest Life Jump to Links for Microorganisms, Viruses, Unicellular Eukaryotes, Plants, ... Mammals -Microorganisms, Extraterrestrial ?Life The Microbial Underground! Methanogens and Other Microbes American Society for Microbiology Online Course in Medical Bacteriology ... A More Dubious Martian Life Form -Viruses Virology on the WWW Virus Images by Genome Type Virus Images by Family Principles of Virus Architecture ... Molecular Epidemiology of HIV -Unicellular Eukaryotes Protist Image Data Prof. Fankboner's Selected Images of Protozoans Spirogyra and Other Protists Radiolarians ... Chlorophyta: Desmids -Green Plants Botany Resources Plant Families California Flora Database Southern California Plant Families ... Arkansas Diversity Mapper -Fungi Mycological Resources The Fission Yeast Site Metazoa (Multicellular Animals) -Metazoans Without Tissues Porifera (sponges) Porifera Home Page Porifera: Prof. Fankboner's Selected Images or Here Porifera: Image of Sponge Spicules Underwater image of sponge -Eumetazoa (Tissues and Body Symmetry) -Cnidaria Cnidaria features Anthozoa (coral, anemones)

45. The Biology Of Animals Video Series sponges. The Biology of cnidarians (1998) The program begins with an indepth study presentsobservations and up-to-date information on round worms including a http://ebiomedia.com/prod/BOanimals.html

The "BIOLOGY OF" Video Programs THE ANIMAL UNIT Here, presented with revealing footage of the organisms, are the great lines of animal life that began around 600 million years ago. Each program treats evolution, phylum characteristics, major classes, larval development, and the natural history of easily-found organisms appropriate for classroom study. Download guides for seven programs - PDF file, 164K Read or link to reviews of these programs NEW Details New - 2003 The Biology of Sponges Phylum Porifera, the simplest of the animal phyla, is an ideal group to begin studies of the animal kingdom. With an estimated 15,000 species diversity, sponges play important roles in aquatic ecosystems as bacterial filters. This program uses underwater photography, microscopy, animation, SEM, and timelapse microscopy to provide a colorful overview of sponge biology with an emphasis on structure, taxonomy, ecology and evolution. (15 minutes - #BO116) The Biology of Flatworms Flatworms, with their three clearly defined cell layers and bilateral symmetry, represent an important advance in early animal evolution. This program provides detailed observations on structure, behavior and life cycles of planarians and other free-living flatworms, some so small they can only be studied with a microscope (Class Turbellaria). It examines the bizarre life cycles of flukes (class Trematoda) and tapeworms (class Cestoda) with revealing shots of these parasites at home in the organs of their vertebrate hosts. (16 minutes - #BO116)

46. National Museum Of Natural History - Invertebrate Zoology - Smithsonian Institut implement research programs on systematics, distribution, relationships and ecologyof crustaceans, echinoderms, sponges, cnidarians, mollusks, worms and other http://www.nmnh.si.edu/iz/main.htm

Dedicated to the study of invertebrate animals and enhancing the scientific value of the National Collection to understand the natural environment Learn more! [NEW] The Department of Systematic Biology, Invertebrate Zoology collections are among the first to be made available on our new electronic catalogue called EMu (for Electronic Museum). The new catalogue will create a global network of data about the natural world, available to scientists, students, the public, and Museum staff alike. Click here to search the Dept. of Systematic Biology, Invertebrate Zoology Collections Within the Department of Systematic Biology , Section scientists of Invertebrate Zoology conduct original research on all 30 major invertebrate animal groups (phyla) of the world (except insects), and are stewards for the 35 million specimens of invertebrates that comprise the U.S. National Collection. The study of invertebrates offers great challenges and opportunities to contribute to the world's knowledge of these organisms. The researchers develop and implement research programs on systematics, distribution, relationships and ecology of crustaceans, echinoderms, sponges, cnidarians, mollusks, worms and other invertebrates.

47. Marine Invertebrates such as the shrimps, crabs, sponges, corals, worms, jellyfishes, snails, and squids.Top of Page. Jellyfish Jellyfish Jellyfish are cnidarians which lack the http://www.stemnet.nf.ca/CITE/marinver.htm

Gander Academy's Marine Invertebrates General Resources Coral Crabs Squid ... Gander Academy's Theme Pages General Resources Marine Invertebrates Brief Descriptions of Invertebrate Phyla Invertebrate Zoology Invertebrate zoology is that branch of science dealing with animals that have no backbonessuch as the shrimps, crabs, sponges, corals, worms, jellyfishes, snails, and squids. Top of Page Jellyfish Jellyfish Jellyfish are cnidarians which lack the polyp stage of the life cycle. Therefore, they are always in the medusae stage. They are considered plankton because they cannot swim on their ownthey are dependent upon the current to take them places. The Moon Jelly Jelly fish are clear or translucent passive drifters. They are opportunistic feeders, but tend to be carnivorous. Their body consits of two layers, with the gut being the only cavity. Most people think of Jellyfish as toxic dangerous animals. Top of Page Barnacles Barnacles Barnacles cling to hard substratum and stay attached to them as they filter feed. Many are found in the intertidal region where pressure is high from predation, desecation, wave action, and competition for space. Barnacles If you walk along the sea shore, you can find barnacles on almost any solid surface that gets covered by water. On rocks, dock pilings, boats, even mussels, you can find clusters of these hard, white, cone-like houses.

48. Mrs. Freed's World Of Biology : Classwork 2/7/03, Notes Comb jellies, start worms Sea anemone dissection. 2/6/03, Exercise8, part II A (sponges) Notes cnidarians. 2/3/03, Exercise 8, Part I (sponges). http://freed.myteacher.dvusd.com/classwork

Mrs. Freed's World of Biology Mountain Ridge High School Home About Homework Classwork Environmental Biology Biology Anatomy ... Policy Classwork Top Anatomy and Physiology Biology Marine Biology Anatomy and Physiology Date Assigned Classwork Cats Cats Immune system ws II Immune system ws I Cat dissection See more entries Top Anatomy and Physiology Biology Marine Biology Biology Date Assigned Classwork Go over test Online discussion instructions Lab report instructions Notes: What is eclogy? and energy Set up plant growth lab Notes: nutrient cycles HW: mini lab p. 289 (write down questions before leaving) Anatomy test: Period 2 Anatomy Test: Period 1 Review for Human systems test Notes: the excretory system, the immune system HW: Human urinary tract and kidney ws Review WS See more entries Top Anatomy and Physiology Biology Marine Biology Marine Biology Date Assigned Classwork Notes: Sea reptiles Finish perch Sea horse Start perch Continue shark Lab 13, continued Shark video II (sub) Continue lab 13 Finish chapter 7 notes Start lab 13 (shark) Shark video Notes: Osteichthyes Notes: chondricthyes Lab 13, part I (lamprey)

49. Biol 1215 Chapt 33 Notes Chapter 33 Invertebrates Outline sponges (phylum Porifera cnidarians (Phylum Cnidaria)are radiate, diploblastic Planarians; Flukes; Tape worms. Nematodes (Phylum http://www.langara.bc.ca/biology/mario/Biol1215notes/biol1215chap33.html

Biology Department Biology 1215 Outline Biology 1215 Lecture Notes Chapter 33: Invertebrates Outline Sponges (phylum Porifera) are sessile animals lacking true tissues Cnidarians (Phylum Cnidaria) are radiate, diploblastic animals with gastrovascular cavities Flatworms (phylum Platyhelminthes) are acoelomate, bilateral, triploblastic animals Planarians Flukes Tape worms Nematodes (Phylum Nematoda) are pseudocoelomates with complete digestive tracts and blood vascular systems. Mollusks, Annelids, and Arthropods are among major variations on the protostome body plan. Phylum Mollusca Phylum Annelida Phylum Arthropoda Trilobites Spiders and other Chelicerates Uniramians Crustaceans The deuterostome lineage includes echidoderms and chordates Phylum Echinodermata Animals are grouped into about 35 phyla and inhabit nearly all environments on earth. Over 95% of all animals are aquatic and invertebrate (animals without a backbone). Their diversity is the main subject of this chapter. Sponges (phylum Porifera) are sessile animals lacking true tissues Least complex of all animals Range in height from 2 meters to 2 cm.

50. Resources For Middle School Science--2.46-- Animals Alive! An Ecological Guide T Each chapter investigates a major group of animals the groups are sponges, cnidarians,flatworms, segmented worms, mollusks, arthropods, fish, amphibians http://www.nap.edu/readingroom/books/rtmss/2.46.html

PREVIOUS ENTRY Zebra Mussel Mania SCIENCE ACTIVITY BOOKS NEXT ENTRY Behavioral Research: 7-12 Teacher's Guide Animals Alive! An Ecological Guide to Animal Activities. Dennis Holley. Niwot, Colo.: Roberts Rinehart, 1994. Recommended grade level: Animals Alive! is designed to help teachers develop activities for studying the animal kingdom. Whenever possible, the live animals used in the activities are collected locally, studied and observed, and then released (unharmed) back into their natural habitats. Price: $29.95 (ISBN 1-879373-58-0). Publisher/supplier: Roberts Rinehart. Materials: Available locally. Topic Index listings linked to this entry Use these listings to find related entries. Amphibians, Life Sciences: Parade of Life: Animals Animal physiology, JASON IV Curriculum: Baja California Sur. Animals, Life Sciences: Ecosystems Exploring Life Science Glencoe Life Science Parade of Life: Animals ... Living in Water: An Aquatic Science Curriculum for Grades 5-7 Environmental Sciences: Biology Is Outdoors! A Comprehensive Resource for Studying School Environments Living Lightly on the Planet: A Global Environmental Education Guidebook Activities to Teach Mathematics in the Context of Environmental Studies Our Wonderful World: Solutions for Math + Science ... Forecasting the Future: Exploring Evidence for Global Climate Change. Arthropods, Life Sciences: Parade of Life: Animals Birds

51. Life Science Page.html 8 Gymnosperm images 9 Flower anatomy images. Part 11 sponges, cnidarians Flat / Round worms. 1 Intro to sponges 2 Sponge lesson http://www.sbceo.org/~thunder/links_pages/links_2.html

Page 2 Links Part 10: Plants Moss (bryophytes) images Fern images Plant anatomy photos Leaf images ... Flower anatomy images Part 11: Sponges, Cnidarians Intro to sponges Sponge lesson More Sponges Intro to Cnidarians ... Planarian image Part 12: Mollusks, Segmented Worms, Echinoderms Animal links Endangered mollusks Mollusk facts Pearls ... More Echinoderms Part 13: Arthropods Millipede page / links to bottom Centipede facts Spider Indetification Scorpion anatomy ... Crustaceans Return to Navigation List

52. New Zealand Marine Sciences Society : Contents Fiordland Underwater Contents. Introduction. Diagrams. sponges. Coralsin Fiordland. Other cnidarians. worms. Brachiopods. Molluscs. Echinoderms http://fiordlandunderwater.com/p10.htm

Fiordland Underwater Contents Introduction Diagrams Sponges Corals in Fiordland ... [Up] Home Page [Home] Home Page [Mail] Send EMail to New Zealand Marine Sciences Society Last modified on Monday, September 04, 2000

53. You Will Find Your Child Test Review 1, Prentice Hall 11, Prentice Hall 1-4, Concept Maps. Animal Characteristics.sponges. cnidarians. worms. Flatworms. Roundworms. Segmented worms. http://greemore.wvc.net/homework.html

You will find your child's homework files to download on this page. You child is currently in the Animal Kingdom book. Please excuse any type-O's. Picture http://www.artgame.com Royce B. McClure Visit CyberZoo 2001 http://cyberzoo2001.wvc.net (Because of the lack of funding, there was no CyberZoo 2002.) Human Biology Book Environmental Book Astronomy Book Animal Book Chapter 1 Worksheet 1-1 Vocabulary Worksheet 1-1 Study Guide Test Review 1 Prentice Hall 1-1 Prentice Hall 1-4 Concept Maps Animal Characteristics Sponges Cnidarians Worms ... Segmented Worms Students who are absent on test day will be given an alternative test on their return. There is no review for the alternative test. Since I give students their tests back the next day, I cannot give the same test to the absent students. Students will have to make up tests before school at 7:30, during their study hall period ( if it does not conflict with my teaming period), but not during class time or after school. There will be writing prompts this year on essay questions. Students will need to learn to create and keep a concept map (graphic organizer).

54. Meet The Invertebrates 3.) The body plan of a sponge (as seen on how sponges are built link above 4.) Explainhow nematocysts work for cnidarians. 5.) Annelids The segmented worms. http://can-do.com/uci/lessons98/Invertebrates.html

Wonderful World of Invertebrates Web Quest Created by: Barbara Wagner Newport Beach, California URL: http://www.can-do.com/uci/lessons98/Invertebrates.html Suggested Grade Level: 7-10 Grade Biological Science Topic Area: Invertebrate Taxonomy Try this Link for General Reference Ucmp Web Lift to Taxonomy -University of California, Berkeley Introduction: Somewhere around 9 or 10 million species of animals inhabit the earth; the exact number is not known and even our estimate are very rough. Animals range in size from no more than a few cells to organisms weighing many tons, such as blue whales and giant squid. Most animals inhabit the seas, with fewer in fresh water and even fewer on land. Intvertebrate Zoology Search the Marine Species Data Base Living things are classified in a hierarchical taxonomy. The basic levels of this hierarchy are: Kingdom Phylum Class Order Family Genus Species A popular mnemonic to remember the above list is "King Phillip Came Over From Germany Stoned".

55. Cole.htm BIOLOGY. I. Taxonomy. II. Viruses and Monera. A. sponges, cnidarians, Flatworms,and Roundworm. B. Mollusks and Segmented worms. C. Arthropods. D. Echinoderms. III. http://ddhs.ddouglas.k12.or.us/staff/science/bier.htm

Mr. Bier COURSES: NATURAL RESOURCES, BIOLOGY, ADVANCED BIOLOGY Room 275 A BLOCK 1 - CAM CHAIR 3 - NATURAL RESOURCES 5 - BIOLOGY 7 - ADVANCED BIOLOGY B BLOCK 2 - PREP 4 - BIOLOGY 6 - BIOLOGY 8 - BIOLOGY GRADING: Grades are largely based on a point system. They are determined by the total points accumulated by the end of that particular grading period, which is usually the semester. SCALE A = 90% AND ABOVE B = 80% - 89% C = 70% - 79% D = 60% - 69% F = 59% AND BELOW BIOLOGY: COURSE REQUIREMENTS DAILY SUPPLIES should be brought to class each day. These include: writing utensil, textbook, notebook, student planner. NOTEBOOKS are required and must be kept updated. They will be checked twice each nine weeks. They are graded on the following, and must be in order: 1. General course information 2. All handouts including notes, assignments, and tests, all arranged by chapter 3. Labs, in order ASSIGNMENTS must be turned in, for success in biology class, in a timely manner. Unexcused late work will recieve half credit. Extremely late work (beyond three weeks) will not be accepted. Make-up work is the students responsibility. TESTS will be given upojn completion of each unit of study. If absent the student must make up the test on their own time. These must also be done in a timely manner or a zero will be given.

56. Ecol 183 Class Notes September 17, 2001 Marine Life From bacteria to plants; September19, 2001 The INVERTEBRATES sponges, cnidarians worms; September http://eebweb.arizona.edu/Marine/biology/notes.htm

The following lectures have been or will be given during the Fall 2001 Marine Biology Class. Please remember that these are only overviews of the class and do not contain complete information. If you missed class, please try to get notes from a friend and ask questions. Web link: Marine Biology This is a great resource for the chapters within the text and a good study aid. Class Notes Hard Copy Binders are Located in BSE 107. Visual Aids of overheads from lectures are in the Class Notes Hard Copy Binders. Version 1 - DAT's visual aids, etc. Version 2 - UGTA's written form of DAT's lectures. August 20, 2001: Introduction to Marine Biology Version 1 Version 2 August 22, 2001: Geography and Geology of the Oceans Version 1 Version 2 Figure 1 Figure 2 August 27, 2001: Oceanography: properties of seawater Version 1 Version 2 Figure 1 Figure 2 ... Figure 4 August 29, 2001: Oceanography: properties of seawater cont'd Version 1 Version 2 Figure 1 September 3, 2001: Labor Day, no class today or labs this week September 5, 2001: Oceanography: Ocean circulation and waves Version 1 Version 2 September 10, 2001: Tides and the Upper Gulf of California

57. Ecology 183, Marine Biology -- Class Notes 2001 Sept 17 Marine life from bacteria to plants (Chapt.4 5) Sept 19 TheINVERTEBRATES sponges, cnidarians worms (Chapt.6, pp 104117). http://eebweb.arizona.edu/Marine/biology/syllabus.htm

MARINE BIOLOGY 2001 [Ecol 183] LECTURE SCHEDULE Professor: Dr. Donald A. Thomson [DAT], BioSciEast 1 Course Coordinator: M. Shaun Pipes, BioSciEast 1 Cousre Homepage Text Homepage Aug 20 Introduction to Marine Biology (Chapt.1) Aug 22 Geography and Geology of the Oceans (Chapt.2) Aug 27 Oceanography: properties of seawater (Chapt.3) Aug 29 Oceanography: properties of seawater (continued) Sept 3 LABOR DAY [No Lecture Today] Sept 5 Oceanography: Ocean circulation and waves Sept 10 Ocean circulation and waves (Chap 3) Sept 24 The INVERTEBRATES: molluscs, crustaceans, echinoderms, and chordates (Chapt.6, pp 117-138) Sept 26 The INVERTEBRATES cont'd Oct 1 Rise of the FISHES! (Chapt.7) Oct 3 FIRST LECTURE EXAM: [Lectures to 9/12; text chapters 1-3, 10] Oct 8 SHARKS!!! (Chapt.7) Oct 10 and more SHARKS!!! Oct 17 Introduction to the Marine Mammals: sea otters to manatees Oct 22 Marine Mammals: baleen whales (Chapt.8) Oct 24 Marine Mammals: toothed whales (Chapt.8) Oct 29 Marine ecosystems: temperate and polar communities (Chapt.12) Nov 5 Commercial fisheries of the world ocean (Chapt.16)

58. Augsburg College: Aquaria: List Of Organisms small primitive white calcareous sponges; others. cnidarians Smallpolyped stonycorals Pocillopora damicornis Polychete worms fire worms (Eurythoe complanata http://www.augsburg.edu/biology/aquaria/organisms.html

Partial List of Live Organisms in Marine Aquaria That are Visible to the Naked Eye Current as of June 1999 This list is out of date - will be updated soon Cyanobacteria - prokaryotic algae Oscillatoria sp - purplish red film on glass below sand line in some places Brown cyanobacteria (on sand in a few spots from time to time) Green Macroalgae Caulerpa paspaloides C. sertularoides C. racemosa (2 types) C. racemosa var. peltata C. serrulata C. prolifera C. brachypus C. taxifolia (or mexicana? ) Caulerpa sp. (several additional unidentified species) Codium sp. Acetabularia sp. Neomeris annulata Dasycladus vermicularis Anadyomene stellata Dictyosheria cavemosa Ventricaria sp. Valonia sp. Avrainviella Cladophora Chaetomorpha Halimeda monile H. opuntia H. tuna H. discoidea Misc. green turf algae Brown Algae Dictyota Misc. Brown turf algae. Red Algae Misc encrusting coralline reds - numerous species on rocks, on glass, on turtle grass, or other algae. These are pink or purple in color (white when dead) Branching coralline reds Neogoniolithon strictum Goniolithon Fleshy/bushy reds (some look brown, but are actually red algae), several species

59. Augsburg College Biology - Marine Aquarium Workshop 2003 tunicates, and others) or that are MUCH more diverse in the oceans than in freshwater(eg sponges, cnidarians, polychete worms, molluscs, crustaceans, and http://www.augsburg.edu/biology/events/aquariumworkshop2003/

Marine Aquarium Workshop (for teachers) Augsburg College - Minneapolis, Minnesota Saturday, March 1, 2003 9:00 am - 4:00 pm (arrive 20 - 30 minutes early to sign in) Location: room 225 Science Hall Click for directions, parking, and campus map Click to view flyer at full size Click for details on how to register Rationale for Workshop A marine (saltwater) aquarium in the classroom can be a powerful tool to inspire interest in the sciences. It can provide a focal point for studies of biological diversity, chemistry, ecology, environmental biology, and other topics. A living, growing miniature marine ecosystem in the classroom also provides multiple opportunities for prolonged observations over months and even years, allowing students to observe growth and behavior of a wide diversity of organisms, giving students a familiarity with these organisms that is hard to achieve through other means. Though any aquarium can be a valuable teaching tool, marine aquaria offer particular benefits. There are many groups of invertebrates that have no terrestrial or freshwater representatives (e.g. echinoderms, tunicates, and others) or that are MUCH more diverse in the oceans than in freshwater (e.g. sponges, cnidarians, polychete worms, molluscs, crustaceans, and others). Similarly, a much greater diversity of algae grow in the oceans than in freshwater (for example, see

60. Chp10sg STUDY GUIDE CHP. 10 B NAME_ sponges cnidarians PER._.10.4 1. Name the three groups of worms and give an example of each. http://scienceman.org/guides/chp10sg.html

STUDY GUIDE CHP. 10 A NAME 1. What is the difference between an invertebrate and a vertebrate? 1. Describe the physical appearance of a sponge 2. How sponges obtain food and oxygen? 3. How do sponges reproduce? 1. Describe the characteristics of cnidarians. 2. Give some examples of cnidarians. STUDY GUIDE CHP. 10 B NAME_ 1. Name the three groups of worms and give an example of each. a. b. c. 2. Compare the shapes and body plans of each group of worms. a. b. c. 1. Describe the characteristics of mollusks 2. Identify the three major groups of mollusks and give an example of each. a. b. c.

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