Animals

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Basic characteristics of animals with some examples.

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Animals

  1. 1. Science 6Animals<br />Mrs. Marlene Torres<br />
  2. 2. Characteristics of Animals<br />Have many cells (are multi-cellular organisms)<br />Cannot make their own food<br />Most can move<br />*some can be sessile(can not move)<br />Can live in land or water<br />
  3. 3. Animals<br />Can be classified in two groups:<br />
  4. 4. AnimalsVERTEBRATES (vocabulary)<br />Vertebrates = Are animals with a segmented backbone. Include the largest animals on land and water. They are group into 7 classes.<br />Endoskeleton = Is an inner (internal) skeleton that protects the internal organs and allow movement.<br />Chordate = Animal with a nerve cord running down their backs<br />Cartilage = Soft bone-like material that is part of the skeleton. <br />
  5. 5. Endoskeleton<br />Backbone<br />Frog skeleton<br />Human skeleton<br />
  6. 6.
  7. 7. Tetrapod = Another characteristic found in vertebrates is the presence of four limbs or feet.<br />Other vertebrates are bipeds, which means that have two feet.<br />San Pedrito<br />Giraffe<br />
  8. 8. Classes of Vertebrates<br />Jawless fish – jawless means NO jaw. Have soft skeletons and breath through gills.<br /> Examples: <br />Hagfish - they have a pair of horizontally moving structures with tooth-like projections for pulling off food. <br />
  9. 9. Jawless fish<br />Examples: Lampreys – have a toothed, funnel-like sucking mouth, with which most species bore into the flesh of other fishes to suck their blood<br />
  10. 10. Bony Fish<br />They have hard, bony skeletons and breath through gills; have fins<br />Examples: <br />Tilapia<br />Spiny Sea Horse<br />
  11. 11. Another Bony fish (the Angler Fish)<br />
  12. 12. Cartilaginous Fish<br />They have a skeleton made of cartilage<br />They have fins<br />The skin of sharks and rays is similar to the feel of sand paper (known as dermal teeth)<br />Blue shark<br />
  13. 13. Amphibian<br />Live in water in their first stages of life.<br />Live in land when adults.<br />Hard bony skeletons<br />Breath through gills when young<br />Breath through<br /> lungs as adults<br />No scales<br />Smooth skin<br />Tree frog<br />
  14. 14. Amphibians of puertorico<br />CoquiChurí<br />CoquiPitito<br />Coquigrillo<br />Coqui de la montaña<br />Asian salamander (not found in Puerto Rico)<br />
  15. 15. Another cool amphibian<br />Axolotl salamander ( best known as the “Ajolote)<br />Located in Mexican fresh waters; found in a variety of species.<br />This specie maintain its gills through adulthood, remaining aquatic. <br />
  16. 16. Birds<br />Have hard bony skeleton.<br />Live in land<br />Have jaw<br />Have feathers<br />Breath through lungs<br />Most of them can fly<br />
  17. 17. Birds in Puerto Rico<br />Rubythroat hummingbird<br />Red-tailed hawk (Guaraguao)<br />Cattle Egret (Garza)<br />Pitirre Julian Chiví Bien-te-veo<br />
  18. 18. Reptiles<br />Have hard bony skeleton.<br />Can be found in land or water.<br />Have hard scales<br />Some of them have a shell to protect their soft bodies. (example – turtles)<br />Breath through lungs <br />
  19. 19. Puerto rican reptiles<br />Boa de Puerto Rico<br />Iguana de Mona<br />Iguana (Gallina de palo)<br />
  20. 20. Mammals<br />Have bony skeletons<br />Breath through lungs<br />Have hair or fur<br />Can move<br />Have jaw <br />Includes the largest organisms<br />Can be found almost everywhere<br />Females can produce milk to feed their young<br />Whales are the largest mammals of the ocean<br />
  21. 21. Mammal examples<br />Mono rhesus (can be found in the southwest region of PR<br />Manatee<br />Bumblebee bat (world’s smallest mammal)<br />African elephant<br />Mouse<br />
  22. 22. Mammals can fly!!! But only one!!<br />BATS<br />
  23. 23. Invertebrates<br />Are animals without backbone<br />They do not have an internal skeleton. They have an EXOSKELETON or external skeleton (shell)<br />Many invertebrates have a fluid-filled, <br /> hydrostatic skeleton, like the jelly fish or worm.<br /> Others have a hard outer shell, like insects and crustaceans. (hard shell made of protein)<br />
  24. 24. Invertebrates<br />Includes the groups:<br />Flatworms and Roundworms<br />Segmented worms<br />Cnidarians<br />Porifera<br />Echinoderms<br />Mollusks<br />Arthropods<br />
  25. 25. Flatworms and Roundworms<br />Live in water, in damp soil or inside other animals.<br />Have simple structures.<br />Flatworms – Have a flat shape; they need to live in water or in the wet environment found inside larger animals<br /> Examples of Flatworms - Tapeworms<br />Roundworms – Have a round shape; have a complete digestive tract<br />Examples of round worms - Hookworms, pinworms, whipworms,<br />
  26. 26. Flatworms<br />Planarian Fluke worm Tapeworm<br />
  27. 27. Roundworms<br />Enterobiusvermicularis<br />(a pinworm)<br />Trichuristrichiura<br />(a whipworm)<br />Hookworm<br />
  28. 28. Segmented Worms<br />Have bodies divided in compartments or segments<br />Can live in damp soil; some can live in water<br />Examples: Earthworms and leeches<br />Leech<br />Earthworm<br />
  29. 29. Cnidarians<br />Cnidarians have an internal sac for digestion <br />They have only one opening, a mouth, through which the animal takes in food and releases waste. <br />Tentacles are found around the mouth. <br />They have stinging cells that they use to capture their prey (such as fish or other organisms)<br />Examples:<br /> Jellyfish, Corals, Sea anemones and hydras<br />
  30. 30. Jellyfish<br />Cnidarians<br />Sea anemone<br />Hydras<br />
  31. 31. Cnidarians (Coral polyps)<br />
  32. 32. Cnidarians (Corals)<br />
  33. 33. Porifera (Sponges)<br />Live in water<br />Are found attached to the ocean floor<br />They feed filtering small food particles from water<br />Come in different colors<br />
  34. 34. Porifera (Sponges)<br />
  35. 35. Echinoderms<br />They have spiny skin<br />Move very slow<br />Live in the ocean<br />Examples:<br /> sea cucumber<br /> sea star<br /> sand dollar<br /> sea urchin<br />
  36. 36. Echinoderms<br />
  37. 37. Mollusks<br />Live in water<br />Have soft bodies<br />Some of them can be found living in shells, such as snails, and oysters<br />Examples:<br /> squids<br /> octopus<br /> slugs (babosas)<br />
  38. 38. Mollusk<br />Oyster<br />Snail<br />Squid<br />Octopus<br />
  39. 39. Arthropods(Most abundant animals on earth)<br />Largest group of invertebrates<br />Legs in pairs<br />Hard exoskeleton<br />Can live everywhere, including the inside of other animals<br />Their body is divided in segments or appendages<br />Consist of three groups:<br />Crustaceans, Insects, and Arachnids<br />
  40. 40. ARACHNIDS<br />Have four pairs of appendages<br />Have one or two body sections<br />No antennae<br />Spiders produce a strong silk fiber to make its webs to capture prey<br />
  41. 41. Arachnids<br />Golden spider<br />Whip spider (el guabá)<br />Centipede<br />Ticks (female and male)<br />
  42. 42. Arthropod (Arachnid)Example: Dust Mite<br />
  43. 43. Insects<br />Their body consist of three sections<br />Head<br />Thorax<br />Abdomen<br />Three pairs of legs<br />Have antennae and<br /> eyes to sense its <br /> environment<br />
  44. 44. Crustaceans<br />Are the most abundant animals in the ocean<br />Examples:<br />Crabs <br />Shrimp<br />Lobster<br />

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