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Shark Classification PowerPoint Presentation
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Shark Classification

Shark Classification

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Shark Classification

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  1. Shark Classification

  2. Introduction To Classification Classification is the act of distributing things into classes or categories of the same type.

  3. About Classification • Aristotle was the first to form a useful form of classification in 300 B.C. • His was organized on the organisms blood color. • Then he later organized by physical characteristics.

  4. As science advanced, a more modern form of classification developed… • One founder of modern classification is Swedish naturalist Carolus Linnaeus. • He developed a system that organized by special features an organism had. • He also founded binomial nomenclature for naming.

  5. The modern classification system has become much more advanced. • Classification makes everyday life easier by putting organisms in a useful system. • Classification helps us to group the organisms we live with every day. • Classification also lets us have a system for reference and will continue to help as we study the organisms around us.

  6. The Shark *Cartilaginous- skeleton of cartilage *Aquatic- lives in water *scales/denticles- small flat plates that fit together to form skin covering (tooth shaped) *lateral line- sensory organs along side of fish to help navigate and sense other creatures *gill filaments-threadlike; part of gills that are filled with blood vessels; where they basically breathe *gill cover- bones (cartilage) of fish’s head that cover gills

  7. Is the body kite-like if viewed from top ? No Yes

  8. INCORRECT Try again..

  9. Is there a small dorsal fin present at the tip of the tail? No Yes

  10. INCORRECT Try again..

  11. Good Job! This organism belongs to the family Rajidae.

  12. If body is kitelike (viewed from top) click this button If body is not kitelike (viewed from top) click this button

  13. Return to previous slide

  14. WRONG!! Go back to previous slide

  15. If pelvic fin is absent, click this button If pelvic fin is present, click this button

  16. Return to previous slide

  17. WRONG!! Go back to previous slide

  18. If six gill slits are present, click this button If five gill slits are present, click this button

  19. Return to previous slide

  20. WRONG!! Go back to previous slide

  21. If only one dorsal fin, click this button If two dorsal fins, click this button

  22. Return to previous slide

  23. WRONG!! Go back to previous slide

  24. If mouth is at the front of the snout rather on the underside of the head, click this button If mouth is on the underside of the head, click this button

  25. Return to previous slide

  26. WRONG!! Go back to previous slide

  27. Family Rhincodontidae This is the whale shark. It belongs to family rhincodontidae. Like all sharks, the whale shark is cold-blooded. The whale shark can be 18 meters in length and exceed 10 tons! The whale shark mainly feeds on plankton, sardines, squid, and anchovies. It resides mostly in Western Australia. Whale sharks are often confused with whales because of their size and non-violent tendencies.

  28. Does the body look kite-like if viewed from top? Yes No

  29. INCORRECT Try again..

  30. Pelvic fin absent or present? Absent Present

  31. INCORRECT Try again..

  32. You did it! This organism is in family pristiophoridae.

  33. If the body is kitelike, click this button If the body is not kitelike, click this button

  34. Return to previous slide

  35. WRONG!! Go back to previous slide

  36. If pelvic fin is absent, click this button If pelvic fin is present, click this button

  37. Return to previous slide

  38. WRONG!! Go back to previous slide

  39. If six gill slits are present, click this button If five gill slits are present, click this button

  40. Return to previous slide

  41. WRONG!! Go back to previous slide

  42. Family Hexanchidae This is the cow shark. It is part of the family Hexanchidae. Cow sharks can be about 3 to 4 meters long. They usually live deep down in warm, temperate seas. Cow sharks can have anywhere from 22 to 108 pups at a time!

  43. Why we use Classification Classification helps scientists characterize traits and specifics on organisms. We use classification to put all of earth’s known organisms into group and families. Dichotomous Keys help us to figure out what genus and species an animal falls under. For example, if a new organism was discovered, a scientist would go through a Dichotomous Key to try to find out the subject’s kingdom, phylum, class, order, family, genus, and species.

  44. * T E H ! E D * N