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Exploring Simple Animals Diversity

Discover the traits and diversity of simple animals, from sponges to vertebrates. Learn about their characteristics and life cycles, including tapeworms and soft-bodied mollusks. Explore the fascinating world of marine life through detailed notes and diagrams.

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Exploring Simple Animals Diversity

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  1. Chapter #7 Simple Animals

  2. Chapter 7.1 Notes Traits of Animals • Animals can notmake food • Most animals can move from place to place. • Animals have many cells. The cells make up tissues and organs that form systems. • Most animals have symmetry.

  3. Symmetry • Radial- around a circle • Bilateral- cut into two halves. Bilateral Symmetry Radial Symmetry

  4. Vertebrates- animals with a backbone. • Invertebrates- animals without a backbone.

  5. Animal Phyla (Phylums) • Stinging-cell • Soft-bodies • Spiny-skin • Chordates- the most complex • Jointed-leg • Sponges • Worms

  6. Chapter 7.2 Notes Sponges-simple invertebrates that have pores. • Do NOT move about freely. • Live attached to rocks • Water enters through pores and leaves through an opening • Filter Feeders • 2 cell layers thick. No tissue or organs. • Have 3 cell types • Trap food • Cover and protect • Make skeleton • Reproduce sexually and asexually.

  7. Stinging-cell animals- have hollow saclike bodies that lack organs. • Nematocysts- stinging cells • Tentacles- arm like parts • Radial symmetry • 2 cell layers • One opening called a mouth • Disc- structure they fasten to the bottom of ocean or rocks. • Have muscle and nerve cells • Most reproduce sexually

  8. Jelly Fish Coral Sea Anemone Stinging cell Animals

  9. Chapter 7.3 Notes 3 phyla of worms • Flatworms- the simplest worms. Examples: Tapeworm (parasite) and planarian (Free-living). • Roundworms- example: hookworms (parasite). • Segmented worms- most complex worms. Examples: earthworm (Free-living) and leeches (parasite).

  10. Life Cycle of a Tapeworm • Pig or cows eat tapeworm eggs • Eggs hatch in pigs/cows intestine • Tapeworm enter blood stream • Form cysts • People eat undercooked meat • Tapeworms get in their intestine and grow • Body sections break off and leave the hosts body in solid waste.

  11. Life Cycle of the Tapeworm

  12. Tapeworm

  13. Chapter 7.4 Notes • Soft-bodied animals (Mollusc)- are animals with a soft body that usually have a shell inside or outside. • Are invertebrates (no backbone). • The body is covered by a thin, fleshy tissue called a mantle. • Soft-bodied animals have a muscular foot for moving from place to place.

  14. 3 classes of soft-bodied animals (Mollusc) • Gastropods- snails and slugs. Have wide muscular foot. Have single shell or no shell. • Bivalves- clams, oysters, and scallops. Have 2 shells. • Cephalopods-octopus, squid, and cuttlefish. Squids and cuttlefish ave shells inside their bodies, octopus no shell.

  15. SLUG Snail Octopus

  16. Drawing Rules • Use white paper…no lines. • Do NOT fold paper • Put a title on your paper (Earthworm) • Name, date, hour • Label all parts • Straight lines when labeling parts. • Color • Use a full sheet…draw big

  17. Worked Cited • “simple Animals”. March 23, 2007. http://www.earthseaspacemuseum.org/img/activities_ocean_img/sea_sponge.jpg • “Coral”. March 23, 2007. http://www.waterencyclopedia.com/images/wsci_01_img0119.jpg • “Radial Symmetry”. March 23, 2007. http://www.geocities.com/Omegaman_UK/symmetry/SNFLAKE.gif • “Bilateral Symmetry”. March 23, 2007. http://teacher.scholastic.com/lessonrepro/lessonplans/profbooks/images/hearts.gif

  18. “Vertebrates”. March 23, 2007. http://www.edsci-affiliates.com/images/vertebrates_divider.jpg • “5 kingdoms”. March 23, 2007. http://www.scienceclarified.com/images/uesc_06_img0326.jpg • “Sea Anemone” March 26, 2007. http://www.britannica.com/ebi/article-9276965 • “Jelly Fish”. March 26, 2007. http://www.gomanzanillo.com/scubamex/1jelly.jpg • “Sun Coral”. March 26, 2007. http://www.melevsreef.com/pics/0604/sun_coral_914pm.jpg • “Tapeworm Lifecycle”. March 27, 2007. http://www.scientific-art.com/GIF%20files/Medical/tapeworm.gif • “Tapeworm”. March 27, 2007. http://www.corkscrew-balloon.com/03/11/2lon/img/26a1.jpg

  19. “Snail”. March 28, 2007. http://www.worth1000.com/web/media/312375/Snails.jpg • “Slug”. March 28, 2007. http://www.uidaho.edu/so-id/entomology/Home_&_Garden/garden%20slug.jpg • “Internal clam”. March 28, 2007. http://www.bio200.buffalo.edu/labs/images/clam.JPG • “Octopus”. March 28, 2007. http://www.glaucus.org.uk/Octopus-RY.jpg

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