Invertebrates

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

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Invertebrates

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

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