Octopuses By Bharti


Published on

Published in: Education
  • Be the first to comment

  • Be the first to like this

No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Octopuses By Bharti

  1. 1. INVERTEBRATES<br />
  2. 2. Types of invertebrates<br />
  3. 3. Types of invertebrates<br />Molluscs<br />Arthropods<br />Worms<br />Porifera<br />Echinoderms<br />
  4. 4. OCTOPUS<br />Whatkind of animal istheoctopus?<br />Characteristics.<br />
  5. 5. Invertebrate<br />Acuaticmollusc<br />Cephalopod<br />Itdoesn’thave a skeletonor spines<br />It’soviparous<br />
  6. 6. Cephalopodmeans «head foot»<br />
  7. 7. The inside organs of the octopus are protected by a mantle, which consists of a thick covering of skin and muscle.<br />Octopuses use their mantle to swim. They tighten all the mantle muscles at once, throwing a blast of water from a tube called the siphon, causing the octopus to launch forward.<br />
  8. 8. VIDEO: Parts of theoctopus<br />Payattention!<br />
  9. 9. Parts of theoctopus<br />
  10. 10. Howsmall do youthinkanoctopus can be?<br />
  11. 11. It can be smallerthan a tennisball!<br />
  12. 12. What do theyeat?<br />Octopuses eat many different kinds of sea creatures. They like oysters and clams. They use their suckers to pull the shells apart and get the food inside. They also like lobsters and crabs. Octopuses have a sharp beak. They use it to break an animal's shell. Then it kills the animal with poison that the octopus makes in its mouth.<br />
  13. 13. Octopuseshave a BEAK:<br />
  14. 14. Oysters<br />Clams<br />
  15. 15. Crabs<br />Lobsters<br />
  16. 16. Where do octopuseslive?<br />They live in the ocean, especially in coral reefs. Octopuses are characterized by their eight arms, usually with sucker cups on them. They are highly intelligent, but have a very short life.<br />
  17. 17. A very famous octopus died a few months ago. Who knows what his name was? <br />
  18. 18. OCTOPUS PAUL<br />
  19. 19. VIDEO: TheMimicOctopus<br />
  20. 20. VIDEO: TheMimicOctopus<br />Themimicoctopus can transforminto 15 differentspecies. We can seethree in the video, can yourememberwhich?<br />
  21. 21. Reproduction<br />The octopus mother lays thousands of eggs. She guards them for weeks. When the baby octopuses are born, the eggs burst open and the tiny octopuses swim out. The mother octopus will die soon after her eggs hatch. She will never see her babies again. Many babies will be eaten by fish, birds or other creatures.<br />The male's penis is in the third tentacle. They lose the tentacle after mating. But after some time it will grow a new arm.<br />
  22. 22. Howmany times does a femaleoctopus reproduce?<br />Whydoesshekeepcarressingthem?<br />VIDEO: MotherOctopus<br />
  23. 23. Defendingthemselves<br />Octopuses face many dangers in the sea, but they have ways of protecting themselves: <br />Camouflage - They have special coloring to help them camouflage in their surroundings. <br />Hiding - The octopus can change colors which can confuse their enemies. They can also hide in holes in the rocks. <br />Ink cloud - The octopus squirts a dark, inky liquid into the water and then swims away to safety.<br />
  24. 24. Didyouknow...?<br />An octopus can survive long periods of time eating it’s own tentacles. If the animal finds food, can regenerate again.<br />
  25. 25. Didyouknow…?<br />Thepupils of anoctopus are quadrangular.<br />
  26. 26. VIDEO: Octopus vs Shark<br />Whowillwin?<br />
  27. 27. TheEnd<br />
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.