Metamorphosis Found Online

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Metamorphosis Found Online

  1. 1. Complete and Incomplete Metamorphosis Let’s look at the difference!
  2. 2. What is metamorphosis? <ul><li>Metamorphosis refers to the way that certain organisms develop, grow, and change form. </li></ul><ul><li>Metamorphosis actually means &quot;change&quot;. </li></ul>
  3. 3. Two Types of Metamorphosis <ul><li>INCOMPLETE METAMORPHOSIS - has THREE stages </li></ul><ul><li>COMPLETE METAMORPHOSIS - </li></ul><ul><li>has FOUR stages. </li></ul>
  4. 4. INCOMPLETE METAMORPHOSIS <ul><li>Let’s take a closer look </li></ul><ul><li>at each stage! </li></ul>
  5. 5. 3 STAGES OF INCOMPLETE METAMORPHOSIS <ul><li>Egg </li></ul><ul><li>Nymph </li></ul><ul><li>Adult </li></ul>
  6. 6. <ul><li>EGG </li></ul><ul><li>A female insect lays eggs. These eggs are often covered by an egg case which protects the eggs and holds them together. </li></ul>
  7. 7. <ul><li>NYMPH </li></ul><ul><li>The eggs hatch into nymphs. </li></ul><ul><li>Nymphs looks like small adults, but usually don't have wings. </li></ul><ul><li>Insect nymphs eat the same food that the adult insect eats. </li></ul><ul><li>Nymphs shed or molt their exoskeletons (outer casings made up of a hard substance called chitin) and replace them with larger ones several times as they grow. </li></ul><ul><li>Most nymphs molt 4-8 times. </li></ul>
  8. 8. <ul><li>ADULT </li></ul><ul><li>The insects stop molting when they reach their adult size. By this time, they have also grown wings. </li></ul>
  9. 9. COMPLETE METAMORPHOSIS <ul><li>Let’s take a closer look </li></ul><ul><li>at each stage! </li></ul>
  10. 10. 4 STAGES OF COMPLETE METAMORPHOSIS <ul><li>Egg </li></ul><ul><li>Larva </li></ul><ul><li>Pupa </li></ul><ul><li>Adult </li></ul>
  11. 11. <ul><li>EGG </li></ul><ul><li>The female lays eggs. </li></ul>
  12. 12. <ul><li>LARVA </li></ul><ul><li>Larva hatch from the eggs. They do not look like adult insects. They usually have a worm-like shape. </li></ul><ul><li>Caterpillars, maggots, and grubs are all just the larval stages of insects. Larvae molt their skin several times and they grow slightly larger. </li></ul>
  13. 13. <ul><li>PUPA </li></ul><ul><li>Larva make cocoons around themselves. </li></ul><ul><li>Larva don't eat while they're inside their cocoons. </li></ul><ul><li>Their bodies develop into an adult shape with wings, legs, internal organs, etc. </li></ul><ul><li>This change takes anywhere from 4 days to many months. </li></ul>
  14. 14. <ul><li>ADULT </li></ul><ul><li>Inside the cocoon, the larvae change into adults. After a period of time, the adult breaks out of the cocoon. </li></ul>
  15. 15. WHAT ABOUT FROGS? <ul><li>Frogs undergo a different type of COMPLETE METAMORPHOSIS. </li></ul><ul><li>From the egg emerges a tadpole, which lives in the water, breathes with gills, and has a tail. </li></ul><ul><li>As the tadpole grows, lungs and legs form, and the gills and tail are absorbed into the body. </li></ul><ul><li>Finally, the animal leaves the water and lives mainly on land, as a frog. </li></ul>
  16. 16. Let’s see what we know! <ul><li>Let’s take Professor </li></ul><ul><li>Know-It-All’s Quiz </li></ul><ul><li>and see what we have </li></ul><ul><li>learned! </li></ul>
  17. 17. QUESTION #1 <ul><li>What are the two types of metamorphosis? </li></ul><ul><li>Complete </li></ul><ul><li>Incomplete </li></ul>
  18. 18. QUESTION #2 <ul><li>How many stages are there in incomplete metamorphosis? </li></ul><ul><li>Answer: 3 </li></ul>
  19. 19. QUESTION #3 <ul><li>Name the stages of incomplete metamorphosis? </li></ul><ul><li>Egg </li></ul><ul><li>Nymph </li></ul><ul><li>Adult </li></ul>
  20. 20. QUESTION #4 <ul><li>How many stages are there in complete metamorphosis? </li></ul><ul><li>Answer: 4 </li></ul>
  21. 21. QUESTION #5 <ul><li>- Name the stages in complete metamorphosis. </li></ul><ul><li>Egg </li></ul><ul><li>Larva </li></ul><ul><li>Pupa </li></ul><ul><li>Adult </li></ul>
  22. 22. QUESTION #6 Identify the cycle as complete or incomplete metamorphosis.
  23. 23. QUESTION #7 Identify the cycle as complete or incomplete metamorphosis.
  24. 24. QUESTION #8 Identify each stage of the complete metamorphosis of the butterfly. A B C D E F
  25. 25. QUESTION #9 Identify the lifecycle of the frog as complete or incomplete metamorphosis.
  26. 26. YOU’VE JUST COMPLETED PROFESSOR KNOW-IT-ALL’S QUIZ How did you do?
  27. 27. I found this presentation online. <ul><li>I could not find it again and I really liked it. </li></ul><ul><li>My deep gradtitude to the creator of this power point! </li></ul>

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