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         Sponges Cnidarians & Worms:     more detail
  1. Invertebrates: An entry from UXL's <i>UXL Complete Life Science Resource</i>

61. Subject Matter
not limited to sponges, cnidarians (Hydrozoans, Jellyfish, Anthozoans anemones,colorful gorgonians, soft corals, hard corals, etc.), Flat worms, Mollusks
http://www.seapics.com/info_for_clients/subject_matter.html
Subject Matter
We are always adding to our collection, and in constant contact with world experts in marine life photography- please do not hesitate to contact us with any marine life photo request!
Sharks

Rays and Other Cartilaginous Fish
Whales
Over 20 different whale species, including rare and endangered species. Excellent coverage of humpback whales, gray whales, sperm whales and orcas. Images showing scientific research, and illustrating natural behavioral. Dolphins
and Porpoises

Over 20 different dolphin species, including rare and endangered dolphins. Spectacular coverage of Atlantic spotted dolphins and bottlenose dolphins, including natural and captive behavior, plus scientific research. Fish:
Sorted by Common Family Name

Sorted by Family Name
Many different species from around the world, including large pelagic game fish such as tuna species, marlin and sailfish, swordfish, dolphin fish, and rare deep sea fish - accurate captions, lots of behavior. Here we could posted only the Family Names since the subject has so many species. Marine Plants
and Marine

Invertebrates
Including but not limited to: Sponges, Cnidarians (Hydrozoans, Jellyfish, Anthozoans - anemones, colorful gorgonians, soft corals, hard corals, etc.), Flat Worms, Mollusks (Gastropods - snails, nudibranchs, etc., Cephalopods - octopus, squid and nautilus), Segmented Worms (fireworms, tube worms, feather duster worms, etc.), Crustaceans (hermit crabs, true crabs, shrimps, mantis shrimps, lobsters, etc.), Echinoderms( crinoids, sea urchins, sea stars, sea cucumbers, etc.) and Tunicates.

62. Invertebrates P;age
into eight phyla (phyllum is singular) that include sponges, cnidarians (coelenterates),Flatworms, Roundworms, Segmented worms, Mollusks, Echinoderms, and
http://webtech.cherokee.k12.ga.us/chapman-is/sinoue/invertebrates_p_age.htm
THE INVERTEBRATES WEB QUEST BY MRS. INOUE QCC Standards Fifth Grade- LA Strand: Communication LA5.59, LA5.64; Science Strand: Inquiry S5.2; Strand: Life Science S5.18 Introduction Task Resources Process ... Conclusion INTRODUCTION: How many different kinds of animals do you think there are in the world? If you said over a million you are right! There are about 1.3 million species of animals on Earth today and probably millions more that are unknown. It's not an easy job of keeping track of them either. You've been introduced to the classification system scientist use when you did the Classification Scavenger Hunt located on this site. You learned that animals are classified into two large groups-vertebrates (have backbones) and invertebrates (have no backbone). Invertebrates account for about 95% of all those animals! (Most of you hypothesized that the Vertebrate group had more.) As you can see there has to be a method of maintaining order when it comes to identifying and classifying this many creatures. TASK: Invertebrates are classified into eight phyla (phyllum is singular) that include: Sponges, Cnidarians (coelenterates), Flatworms, Roundworms, Segmented Worms, Mollusks, Echinoderms, and the largest group called the Arthropods. The class will be divided into five groups to use the resources listed here to develop a cluster map that will include the kinds of animals, characteristics, habitats, food, body symmetry and special features, and five interesting facts about the phyllum.

63. The Diversity Of Life: Chapter 5
the reasons for harvesting sponges, the equipment used for collection, and theislands where sponges are most 53 What are cnidarians? 5-4 What are worms?
http://www.conceptsandchallenges.com/modules/students/book_2/b2_c5/b2_c5_s.cfm
Log Out Student's Home Online Classroom Database Help Contact Us Select a Book: (Select a Book) The Basis of Life The Diversity of Life Environmental Science The Human Body Earth's Structure and History The Changing Land Water and Air Earth and Space Matter Chemical Changes Force, Motion, and Work Energy Select a Chapter: (Select a Chapter) Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6
How are animals classified?
What are sponges? What are cnidarians? What are worms? ... How do insects develop?
Chapter 5 Animals Without Backbones You may post any of the activities in this chapter to the Online Classroom Database. If you would like to post a MORE ON THE WEB or Web InfoSearch activity, click on Post a MORE ON THE WEB/Web InfoSearch Activity 5-1 How are animals classified? MORE ON THE WEB
Classifying Animals Visit the Introduction to Animal Classification Web pages to review the seven categories of classification. Examine how animals are classified according to these categories. Then, list the seven categories that are used to classify animals. Finally, classify a human, a red abalone, and a bald eagle, according to the seven categories. You may find the above Web pages more helpful for classifying kingdom and phylum; however, the following Web pages will provide more specific classification information. List each category and write the name of each organism's specific classification.

64. Biology I Virtual Classroom
Topic 12 Who Am I? A. Invertebrates (sponges, cnidarians, Flatworms, Roundworms,Mollusks, Segmented worms,Echinoderms) Review Quiz Game - sponges and
http://www.sciencedogs.com/biology/bioclass.htm

Quarter 1
Quarter 2 Quarter 3 Quarter 4
Textbook: Biology: The Dynamics of Life , Glencoe/McGraw - Hill, 1998
1st Quarter: The World Around You

A. Characteristic of Living Things
B. Classification
A. Classification (Intro)
B. Vascular vs. Nonvascular Plants
C. Angiosperm vs. Gymnosperm
Review Quiz Game - Ferns and Gymnosperms
Review Quiz Game- Flowering Plants
Topic 3 - Basic Structure of Plants A. Roots B. Stems C. Leaves Review Quiz - Flower Reproduction (New 11/14) Text Reference - Chapter 27 2nd Quarter: What Makes You Unique Topic 4 - Comparisons of Cell Types A. Cell Theory B. Animal vs. Plant C. Eukaryotic vs. Prokaryotic Cell Vocabulary Review (New 11/19) Text Reference - Chapter 8 A. Nucleus (Genetics) B. Ribosomes (Protein Synthesis) C. Mitochondria (Cellular Respiration) D. Lysosome (Enzyme Activity) Text Reference - Chapters 8 - 16 Semester Exam Topic 6 - Fungal Disease A. Types of Fungi

65. Biology Course, Qwizdom Educational Software
Millipedes, Echinoderms, Insects, Invertebrates (Introduction, Circulatory System),Mollusks, Reactions in Lower Animals, sponges and cnidarians, and worms.
http://www.qwizdom.com/software/k12/biology.htm
Qwizdom T.A. LE (included on each curriculum CD) allows you to do everything that you can with the full version of Qwizdom T.A. (present materials, create new activities using existing content, call on students, etc.) except that you cannot create your own materials. Intro to Biology
Covers topics such as Advances in Biology, Biology Careers and important people, Calculations and Problem solving, Charts and Graphs, Electron Microscope, Graphing, Lab Safety and Techniques, Measurement (metric system), Microscope (introduction, microns, making a wet mount, diameter of field of view, magnification), Scientific Method, Significant Figures, and Tools and Techniques of the Biologist.
Order # BL101 - Price $49.95 Cell Structure and Function
Covers topics such as Activation Energy, Cell Endocytosis and Exocytosis, Cell Growth and Division, Cell Processes, Cell Structure, Cell Theory, Cells and Energy, Cellular Respiration, Enzymes, Eukaryotes, Genetics - Chromosomes, Osmosis, Photosynthesis, Protein Synthesis (Transcription and Translation), Protoplasm, and Reproduction.
Order # BL102 - Price $49.95

66. Sciencedeptwebpage
10 Feb. 13, 4, Chapter 10 - sponges, cnidarians, and worms; Begin InvertebrateDissections. Feb. 18 - Feb. 21, 4, Chapter 10 - sponges, cnidarians, and worms.
http://www2.shoreschool.org/projects/science/science7/7_syllabus.htm
Shore Country Day School
Science Department Upper School: Grade 7: Course Reference Material Lower School Upper School Star Lab Weather Station ... Shore's Homepage
Course Syllabus
7TH GRADE LIFE SCIENCE 2002-2003 COURSE SYLLABUS Dates, Days, Topic Sept. 4 - Sept. 6, 3, Introduction to course Sept. 9 - Sept. 13, 5, Chapter 1 - Cells: The Building Blocks of Life Sept. 16 - Sept. 20, 5, Chapter 1 - Cells: The Building Blocks of Life Sept. 23 - Sept. 27, 5, Test Chapter 1, Chapter 2 - Cell Process and Energy Sept. 30 - Oct. 4, 5, Chapter 2 - Cell Process and Energy, Starlab: Fall Constellations Oct. 7 - Oct 11, 5, Briarwood Oct. 15 - Oct. 18, 4, Briarwood Follow-up, Starlab Projects Oct. 21 - Oct. 25, 5, Chapter 2 - Cell Process and Energy, Test Chapter 2 Oct. 28 - Nov. 1, 5, Chapter 3-4 - Genetics, Start Fruit Fly Traps and Experiments Nov. 4 - Nov 7, 4, Chapter 3-4 - Genetics, Fruit Fly Traps and Experiments Nov. 11 - Nov. 15, 4, Chapter 3-4 - Genetics, Fruit Fly Traps and Experiments

67. Honors Biology Homework -- Invertebrates
Chapter 26 sponges, cnidarians, and Unsegmented worms 1. p. 554560; q. 1-42. sponges ­ p. 560-563; q. 1-3 3. cnidarians ­ p. 564-569; q. 1-5 4
http://www.cipce.rpi.edu/~ausemj/biol/biohmwk/invert_hmwk.html
Honors Biology Homework Page
Introduction Chemistry of Life Cells Cell Division ... Plants Chapter 26: Sponges, Cnidarians, and Unsegmented Worms
1. p. 554-560; q. 1-4
5. p. 582-583: word relationships 1-7; concept mastery 2, 4; critical thinking 1, 2
due: Tues/Wed, March 27/28 Chapter 27: Mollusks and Annelids
3. p. 604-605: word relationships 1-4; concept mastery 3, 4; critical thinking 1, 2, 3
due: Friday, March 30th Chapter 28: Arthropods
note: this will be a good reference section for your design-an-animal projects
6. review p. 634-635: word relationships 1-4; concept mastery 4; critical thinking 1, 3. 4, 6
due: Tuesday/Wednesday, April 3/4 Chapter 29: Echinoderms and Invertebrate Chordates
3. review p. 651: word relationships 5-8; concept mastery 4; critical thinking 1, 3
Chapter 30: overview of invertebrates
1. p. 658-668; q. 1-6
2. problem solving, p. 669, q. 1-6
3. p. 673: concept mastery 2, 5, 6; critical thinking 3, 4
This chapter is a very important summary of invertebrates chap 29 and 30 due together on Friday, April 6th

68. Chapter 19
Some cnidarians are exclusively one or the other; and some Unlike sponges, they haveboth muscles and nerves the Planarians (Free living flat worms), the flukes
http://niko.unl.edu/bs101/notes/lecture19.html
Lecture Summary
  • Who are the animals? Animal Phyla:
  • A review of the Kingdom Animalia.
    Animal Diversity.
    Who are the animals? Animal Phyla:
    • Porifera, Platyhelminths, Cnidarians, Ctenophores, Nematoda, Nemertea, Rotifera, Mollusca, Annelida, Arthropoda, Echinodermata, Chorodata.
    • What separates these animals from other organisms? Some properties of animals.
    • Of 1.5 million know species of living things, about a third are animals.
    (to summary)
    A review of the Kingdom Animalia.
    • The Sponges-Phylum Porifera:
    • These live in water, mostly in the sea.
    • Some sponges have no symmetry, but those that do are radially symmetrical.
    • They have no nerves or muscles, and their embryonic development is atypical.
    • Flagellated, collared cells called choanocytes create a current of water, the collar filters small particles from the water; the Amoebocyte digest and distribute these particles.
    • The CnidariansJellyfish, Anemones, Corals.
    • Another largely marine group.
    • There are two Cnidarian body plans: the medusa and the polyp. Some cnidarians are exclusively one or the other; and some are have both forms in their life cycle. Both body plans are radially symmetrical.
    • A diagnostic feature of cnidaria is the cnidocyte or "stinging cell."
  • 69. Invertebrates
    Describe sexual and asexual reproduction in sponges. Can cnidarians reproduce asexually? Whatstructural modifications do certain parasitic worms possess?
    http://www.ccsn.nevada.edu/science/Biology/Leary/Invertebrates.html
    Phylum: Porifera The most primitive animals. Where are sponges found (marine, freshwater, terrestrial)? Adults sessile. What type of symmetry is present in sponges? How many germ layers? Are tissues or organs present; a coelom? What is mesoglea? Do sponges display cellular level of development? Explain. What is responsible for sponge coloration? Distinguish:
    • ostia
    • osculum
    Skeleton of spicules. Describe the nature of the various types of spicules in sponges. What is spongin? List the 3 types canal systems. Discuss the role of the following cell types:
    • pinacocytes
    • choanocytes
    • amebocytes
    Is food taken into a digestive cavity? Is digestion intracellular or extracellular? How are the following accomplished:
    • respiration
    • excretion
    • circulation
    Describe sexual and asexual reproduction in sponges.
    Phylum: Cnidaria Where are cnidarians found (marine, freshwater, terrestrial)? What type of symmetry is present in cnidarians? Is a complete digestive tract present...how many openings to it? How is feeding accomplished? How is prey captured? What is a:
    • cnidocyte
    • nematocyst
    • cnidocil
    How many tissue layers? Are cnidarians at a cellular, tissue, or organ level of development? Is a coelom present? What is mesoglea?

    70. Extended Lecture Outline
    and that can develop into new sponges in favorable h. All cnidarians have a sexualstage, producing sperm and body parts or even form whole worms from pieces
    http://www.mhhe.com/biosci/genbio/guttman/student/olc2/chap34outline.html
    Biology Guttman Student Online Learning Center
    Chapter 34: Animals I: General Features and the Lower Phyla
    Extended Lecture Outline Chapter 34: Animals I: General Features And The Lower Phyla larva , an immature form very different from the adult. body plans and their embryology ( Concepts 34.1, Figure 34.1 Figure 34.25 Table 34.1 shows a classification of the animal kingdom. Parazoa are animals made of specialized cells, without true tissues. Mesozoa are parasites made of one central cell surrounded by a few other cells ( Figure 34.2 Placozoa are discussed later in relation to the metazoans. Eumetazoa ("true animals") are divided into two infrakingdoms, Radiata and Bilateria, on the basis of their body symmetry and number of tissue layers. diploblastic , with a jellylike material between their two tissue layers. triploblastic (having three tissue layers.). coelom , a cavity between the body wall and the intestine. Concepts 34.2

    71. Invertebrates Living Lagoon
    sponge, sponges. cnidarians, cnidarians (corals, anemones jellyfish). worms,worms. crab, Arthropods (crustaceans, insects and relatives). clam, Molluscs.
    http://www.epa.gov/owow/oceans/lagoon/invert.html
    Invertebrates Invertebrates Fish ... Mammals Click on an invertebrate below to learn more about it. When you want to return to this page and visit a new invertibrate use the invertibrate homepage option at the top of each page. Sponges Cnidarians Worms
    Arthropods
    (crustaceans, insects and relatives) Molluscs Tunicates (sea squirts, etc.) Echinoderms How the System Works History Human Impacts ... SEARCH
    URL: http://www.epa.gov/owow/oceans/lagoon/invert.html
    Revised June 1, 1998

    72. AnimalPhylogeny1
    However, the locomotion of worms typically involves rather simple propagated wavesof information in this paper is primarily from cnidarians and sponges.
    http://www.cco.caltech.edu/~brokawc/Bi11/AnimalPhylogeny1.html
    Lets return to the problem of trying to understand the evolutionary origin of the Metazoa . We have looked at a variety of organisms below this level; now lets consider a top-down approach, and propose that:
    The first "real animals" were worms.
    What distinguishes worms from other animals? The lack of a rigid (usually jointed) skeleton. What is a skeleton?
    Muscles can only contract. They do not actively elongate. An external, antagonistic force is needed to stretch them out again. This antagonistic force is usually conducted by a skeleton. The primary function of a skeleton is to provide for muscle antagonism , usually between different muscles that can be independently controlled, but sometimes between muscle and elastic antagonists. Soft-bodied animals must have solved this problem, without a rigid skeleton.
    But worms share the following characteristics with other "real animals":
  • Use muscles for locomotion, by creating "waves" of muscle contraction.
    I want to focus on locomotion, and the fact that there is an enormous gap between the use of actin and myosin for locomotion by an amoeboid cell like Naegleria , and the use of actin and myosin in muscle cells of worms and other multicellular animals.
  • 73. History Of Life
    multicellular origins. How many times in animals? There are three basictypes of animal.sponges, cnidarians, and worms. These three
    http://www.as.wvu.edu/biology/bio115/HistofLife2.html
    History of Life 2
    Proterozoic Era
    543 - 2500 mya
    Oxygen - the First Case of Pollution?
    • Oxygen, the waste product of photosynthesis, built up in the atmosphere reaching 1% of the atmosphere by 2 billion years ago. Uranites UO Can only accumulate at O levels lower than 1%. Not found in rocks younger than 2300 mya Red Beds Iron Oxides date from 2300 mya Decline in Banded iron beds rare after 1800 mya Sedimentary copper deposits appear in 1700 mya NB copper only found in proteins of eukaryotes.
    The Evolution of the Atmosphere
    A More Efficient Metabolism
    • In the presence of free O a new form of respiration evolved which was much more efficient than anaerobic respiration Aerobic respiration is significantly more efficient than anaerobic respiration 36 vs. 2 ATP
    Evolution of the nucleus
    Packaged DNA is protected form damage - elaborate cellular mechanisms exist to protect the DNA one the simplest is the nuclear membrane The oldest fossils of Eukaryotes are about 1.2 billion years old

    74. Animal On Line
    Chapter 1 sponges, cnidarians and worms. 2.1.1 What is an Animal 2.1.2 IntegratingMathematics Symmetry 2.1.3 sponges and cnidarians 2.1.4 worms.
    http://192.107.108.56/portfolios/projects/NJSCICUR/animalon.htm
    Animals
    Below you will find online links by chapter
    Chapter 1: Sponges, Cnidarians and Worms.
    2.1.1 What is an Animal
    2.1.2 Integrating Mathematics: Symmetry
    2.1.3 Sponges and Cnidarians
    2.1.4 Worms
    Chapter 1 Web Sites
    1. An example of symmetry in a butterfly.
    2. A history of porifera also many pictures and system functions. 3. A site full of wormy activities. See a worm being born, its anatomy and how a worm composts.
    Chapter 2 Mollusks, Arthropods and Echinoderms. 2.2.1 Mollusks
    2.2.2 Arthropods 2.2.3 Insects 2.2.4 Integrating Physics; the Sounds of Insects 2.2.5 Echinoderms Chapter 2 Web Sites 1. A complete data base of insects including the largest and smallest insect around. 2. Cicada sounds and pictures. 3. Hear wolf sounds. 4. A data base of mollusks and echinoderms. Chapter 3 Fishes, Amphibians and Reptiles what is a Vertebrate? 2.3.1 Fishes 2.3.2 Amphibians 2.3.3 Reptiles 2.3.4 Integrating earth Science Vertebrate in Rocks. Chapter 3 Web Sites 1. A students internet guide to fish parts, fish tales and much more. Chapter 4 Birds and Mammals 2.4.1 Birds

    75. Chapter 6 Study Guide Part I
    sponges are filter feeders that rely on their own cnidarians wait until their prayswim into the region Identify three ways that arrow worms are unique among
    http://www.northstar.k12.ak.us/schools/beh/departments/science/mcconnell/ ch6sg1
    Chapter 6 Study Guide Part I 1. Describe the physical characteristics of sponges that give them their unique ability to absorb and hold water. The surface of a sponge is perforated by may tiny pores that allow water and nutrients to flow into the central part of the sponge where the water may be trapped in tiny pores from which the nutrients can then be extracted. 2. Describe the type of feeding behavior sponges engage in and what their typical food supply consists of. Sponges are filter feeders that rely on their own ciliated movement of water through the system of passages in their structure. Food particles are typically planktonic algae which are filtered from the water within the passages of the sponge structure. 3. Describe the two basic forms that Cnidarians can take. What features do these two forms share in common? In what way are these two forms different? Cnidarians can take either a polyp or medusa form. The two forms are both radially symmetrical and have a group of tentacles arranged around a central mouth located on the oral surface. The oral surface on a polyp faces up toward the open water, while the oral surface on a medusa form of cnidarian faces down on the bottom side of the "bell." 4. Describe the tissue composition of Cnidarians.

    76. Lesson Exchange: What Animal Am I? (Elementary, Science)
    unit, we have been studying different phylum such as mollusk, arthropods, segmentedworms, echinoderms, flat worms, sponges, cnidarians, and round worms.
    http://teachers.net/lessons/posts/459.html
    Tell Congress to Keep Kids Learning
    #459. What Animal Am I?
    Science, level: Elementary
    Posted Thu Jun 11 13:19:34 PDT 1998 by Barb Walker and Carolyn Roberts ( bwalker@hudson.k12.ia.us croberts@hudson.k12.ia.us
    Hudson Community Schools, Hudson, USA
    Materials Required: computer with internet access, project handout, floppy disk, book binding supplies
    Activity Time: one week of 45 minute class sessions
    Concepts Taught: Invertebrates
    What Animal Am I? Animal Riddles 1. What animals do you need to make a square? 2. What can you do if you are surrounded by lions, tigers, leopards, and bears? (To find the answers continue reading) Introduction In the previous unit, we have been studying different phylum such as mollusk, arthropods, segmented worms, echinoderms, flat worms, sponges, cnidarians, and round worms. Discuss with the person sitting to your left a characteristic of each and an example that would fit into that phyla. I will do the first one for you: mollusk -
    soft-bodied animal - squid. Today we are going to experience a learning adventure that will introduce you to different characteristics of invertebrates. Your text defines invertebrates as an “animal that has a skeletal system inside its body.” Let’s brainstorm as many animals that fit this definition and list them on the chalkboard.

    77. Final Exam Outline
    evolution of sponges cnidarians. Section 13.2 Segmented worms characteristicsof segmented worms; general information about earthworms, leeches, marine
    http://w2.shorecrest.org/MSUS/C-Cruise/htmlpages/final_exam_outline.htm
    FINAL EXAM REVIEW OUTLINE Advice for Exams
    Chapter 6
    • definitions: evolution, species, natural selection, variations Darwin's studies, steps in natural selection punctuated equilibrium, gradualism extinction
    Section 6.2 - Evidence of Evolution
    • fossils, fossil record (timeline) radioactive dating, relative dating vestigial structures, homologous structures, embryology, comparing DNA
    Section 6.3 - Human Evolution
    • characteristics of primates hominids Australopithecus, Homo habilis, Homo erectus , Neanderthals, Cro-Magnon man
    Chapter 7 Section 7.1 - Monerans
    • characteristics of Monerans definitions: flagellum, fission, aerobe, anaerobe
    Section 7.2 - Monerans in Your Life
    • helpful/useful Monerans harmful Monerans definitions: nitrogen-fixing bacteria, saprophyte, pathogen, antibiotic, vaccine, toxin, endospore characteristics of viruses classification of viruses viral diseases (HIV, and other examples) gene therapy
    Chapter 8 Section 8.1 - Protist
    • evolution of protist 6 algae phyla red tide 4 protozoan phyla fungus like protist
    Section 8.2 - Fungi

    78. Silver Team Science:
    Modern Genetics. B. Animals Animal Behavior. sponges, cnidarians, and worms.Mollusks, Arthropods, and Echinoderms. Vertebrates. C. From Bacteria to Plants
    http://www.mccsc.edu/~scarver/silver.htm
    Jackson Creek Middle School Silver Team Science Welcome to Silver Team Science! You know our team is unique because we are a "key element" to the school. We use the letters AGT for class names because Ag is the symbol for Silver on the periodic table, and T represents Team. If you're not quite sure what that means, don't stress. You will learn all about the Periodic Table and its elements before you leave Jackson Creek. Below are a few of the topics we will cover in science class. Some of the topics will be covered a little more in depth than others. Each main topic is a different textbook. 7th Grade: A. Cells and Heredity
    • Cell structure and function Cell processes and energy Genetics: The Science of Heredity Modern Genetics
    B. Animals
    • Animal Behavior Sponges, Cnidarians, and Worms Mollusks, Arthropods, and Echinoderms Vertebrates
    C. From Bacteria to Plants

    79. Invertebrates
    htm Backyard Animals Mollusks, Segmented worms, Arthropods (except Department HermitCrab sponges http//www Biology/hermit.html cnidarians Evergreen Project
    http://hms.d70.k12.il.us/library/invertebrates.html
    Invertebrates
    General Invertebrate Sites
    Invertebrates
    Porifera, Cnidaria, Ctenophora, Mollusca, Arthropoda, Echniodermata, Marine worms
    http://www.cyhaus.com/marine/inverts.htm

    Backyard Animals
    Mollusks, Segmented Worms, Arthropods (except insects), and Insects
    http://www.earthfoot.org/backyard/animals.html

    Invertebrate Printouts
    You will have to scroll down the page. Click on the invertebrate that you want. Keep going until you get the information and illustration that you need.
    http://www.enchantedlearning.com/subjects/invertebrates/index.shtml
    Kidport Reference Library: Invertebrates: Animals without Backbones http://www.kidport.com/RefLib/Science/Animals/AnimalIndexInv.htm#links Sponges Aquarium Frontiers On-Line: Without A Backbone http://www.animalnetwork.com/fish2/aqfm/1998/jan/wb/default.asp Evergreen Project: Sponges http://mbgnet.mobot.org/salt/animals/sponges.htm Mote Marine Laboratory: About Sponges http://www.marinelab.sarasota.fl.us/SPONGE.HTM San Diego Natural History Museum: Demospongiaw (sponges) http://www.oceanoasis.org/fieldguide/sponges.html

    80. Multi-celled Animals
    In general, sponges have opentopped, sack-like bodies which are fixed The cnidariansinclude corals, sea anemones, and jellyfish.Their basic body plan worms.
    http://geol.queensu.ca/museum/exhibits/oldanim/oldanim.html

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