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This presentation shows what invertebrates are and the different types of invertebrate animals.

This presentation shows what invertebrates are and the different types of invertebrate animals.

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  • 1. INVERTEBRATES Neon slug Pictures of invertebrates link BY ANA RUPEREZ
  • 2. INVERTEBRATES
    • Animals that don’t have a backbone are called invertebrates.
    • They can live in many different habitats: water, soil, air..
    • Some of them, such as jellyfish and worms have no protection for their soft bodies.
    • Others, such as snails and clams, have a soft body inside a hard shell.
    • What is an invertebrate? (GAME)
    http://www.butterflyschool.org/student/invertgame.html
  • 3. Think of some animals that live in water, soil or air and don't have a backbone… WATER SOIL AIR
  • 4. SPONGES
    • No mouth, stomachs, or other organs
    • Most live in oceans
    • Cannot move
    • They stink a lot
    • They filter the water to eat
    • They can grow back any broken part.
  • 5. Experiment with sponges
    • We touch, see and smell two species of sponges.
    • We describe and draw them.
    • We have to make a hypothesis about what would happen to them if they are introduced in water
      • They will grow…
      • They will be heavier…
      • They will floate….
      • They will stink more….
      • They will absorb all the water….
    • We introduce the sponges inside the water and observe the changes. We describe the changes.
  • 6. CNIDARIANS: INVERTEBRATES WITH STINGING CELLS
    • They have tentacles
    • They have a mouth
    • They live on the ocean floor
    • They shoot poisonous darts
    jellyfish Sea anemone coral
  • 7. WORMS
    • They can grow back parts if they lose parts.
    • Some worms can grow to 30 METERS long
    • An earthworm has hairs on it to help it go through the dirt!!!
    Flatworm Segmented Roundworms                                                               
  • 8. ECHINODERMS: INVERTEBRATES WITH SPINY SKINS
    • They have bodies with at least 5 sections.
    • They have suction cup feet to walk
    • They use tubes to catch food.
    starfish Sea urchin Sea cucumber
  • 9. MOLLUSK: INVERTEBRATES WITH SOFT BODIES
    • They live on land, fresh water and ocean water.
    • Some make shells from minerals in the water.
    • Two shelled mollusks have a big foot to pull themselves along.
    squid snail octopus Clam mussel
  • 10. ARTHROPODS: ANIMALS WITH ARTICULATED LEGS THERE ARE 4 GROUPS
  • 11. ARTHOPODS
    • They have keen sense organs
    • They have exoskeletons.
    • They have two or more segments
  • 12. CRUSTACEANS
    • They have 5 pairs of legs
    • They live near or on the ocean floor
    • Live on land and water
    • They have antennae
    crab shrimp lobster
  • 13. ARACHNIDS
    • Spiders, mites and ticks.
    • 4 pairs of legs
    • Most live on land.
    • Some live in fresh water
    • They are called parasites.
    SPIDER MITES TICK
  • 14. INSECTS
    • Largest group of arthropods
    • 3 pairs of legs
    • 3 main body part sections
    • Compound eyes
    • Have mouths
    fly beetle grasshopper butterfly
  • 15. MILLIPEDES & CENTIPEDES
    • Many body segments
    • Live under rocks & dark places
    • Really have less than 100 legs
    • Protects itself by curling up
    • Millipedes have 4 legs on each segment
    • Centipedes have 2 legs on each segment
    millipede centipede