Vertebrates 1 ESO

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Vertebrates 1 ESO

  1. 1. VERTEBRATES
  2. 2. • Nice pictures as introduction • http://www.xatakafoto.com/concursos/los-finali • http://news.distractify.com/culture/arts/macro-p
  3. 3. • Video about vertebrates. At the end of the lesson • http://www.youtube.com/watch?v=IT_y1jOoaX
  4. 4. Vertebrates. How many groups are there? • Fish • Amphibians • Reptiles • Birds • Mammals
  5. 5. ALL VERTEBRATES HAVE • ENDOSKELETON with a BACKBONE • HEAD, TRUNK AND some with a TAIL • ARTICULATED LIMBS • WELL-DEVELOPED NERVOUS SYSTEM • BILATERAL SYMMETRY
  6. 6. THERMIC REGULATION Endothermic or exothermic? The lizard is exothermic or endothermic?SUNRISE MIDDAY SUNSET
  7. 7. Sustituir en el libro • Donde pone: –Homeothermal/ Warm-blooded escribir ENDOTHERMIC –Poikilotherms/Cold-blooded escribir EXOTHERMIC
  8. 8. EXOTHERMIC ANIMALS • Obtienen el calor del medio externo • NO Tienen distintos mecanismo para estabilizar su temperatura. • Regulan temperatura por medio del comportamiento. Ej. Lagartos • Fish, amphibians, reptiles
  9. 9. ENDOTHERMIC ANIMALS • Capaces producir calor por si mismos. • No dependen del medio externo • Tienen un mecanismo interno de regulación de la temperatura corporal • Birds, mammals
  10. 10. EXOTHERMIC VERTEBRATES • FISH • AMPHIBIANS • REPTILES
  11. 11. ENDOTHERMIC VERTEBRATES • BIRDS • MAMMALS
  12. 12. Eggs can be • Non-amniotic • Amniotic
  13. 13. Huevo amniótico (Amniotic egg) • Protegido por una cáscara • Rodeado por varias membranas • Permite intercambio de gases • Evita la pérdida de agua • Independencia del medio acuático • Presente en REPTILES Y AVES.
  14. 14. Huevo amniótico
  15. 15. FISH • Are they terrestrial or aquatic? • Do they live in salty or fresh water? • What are their main characteristics? – They have: • SCALES • FINS • GILLS • A fusiform body, they are wider in the middle that at the ends. • LATERAL LINE SYSTEM, a sensory organ that detects vibrations. – Endothermic or exothermic?
  16. 16. Groups of fish • Two groups: – CARTILAGINOUS FISH. The skeleton is made of cartilage • EXAMPLES? – Sharks , rays – BONY FISH. The skeleton is made of bone • Carp, salmon, trout, cod, hake
  17. 17. • Go to page 76 in your book. Identify the main differences between cartilaginous and bony fish. Cartilaginous fish Bony fish Gills without operculum Gills with an operculum protecting them Cartilaginous skeleton Bony skeleton Caudal fin divided in two halves of different sizes Caudal fin divided in two equal halves Without scales, small denticles With scales
  18. 18. • Bony fish, oviparous, external fertilisation. – With a swim bladder • Cartilaginous fish, sharks can be oviparous or ovoviviparous and fertilisation takes places internally. – Without a swim bladder
  19. 19. Shark • It is • Bony?? • Scales?? • Operculum?? • Respiration • Thermic regulation Lateral line system?? FISH GILLS EXOTHERMIC CARTILAGINOUS
  20. 20. Bony fish • It is • Bony?? • Scales?? • Operculum?? • Respiration • Reproduction • Thermic regulation Lateral line system?? • GILLS OVIPAROUS EXOTHERMIC HUEVOS NO AMNIÓTICOS
  21. 21. AMPHIBIANS • Are they independent from water? • What means their name? • What are amphibians like? – 4 limbs – Webbed feet – Moist skin with no covering (no scales) – Undergo metamorphosis – Exothermic – Oviparous
  22. 22. Frog • It is an…. • It has no tail.. ANURA • Skin: • Number of legs • Metamorphosis • Respiration • Reproduction • Thermic regulation MOIST EXOTHERMIC AMPHIBIAN OVIPAROUS HUEVOS NO AMNIÓTICOS
  23. 23. Salamander • It is • Skin (moist or dry?) • With tail?? • Number of legs • Respiration • Reproduction • Thermic regulation • Metamorphosis AMPHIBIAN URODELA OVIPAROUS EXOTHERMIC HUEVOS NO AMNIÓTICOS
  24. 24. Metamorphosis EGGS FROGSPAWN LITTLE TADPOLE BIG TADPOLE with legs FROG
  25. 25. They are examples of tritón jaspeado Triturus marmoratus. Who is the male and who the female?
  26. 26. http://riosmenudos.blogspot.com.es/search /label/Rana%20bermeja
  27. 27. Turtle • It is • Skin • Reproduction • Thermic regulation CARAPACE OVIPAROUS EXOTHERMIC REPTILE HUEVOS AMNIÓTICOS
  28. 28. Lizard • It is • Skin (moist or dry? • Scaly skin? • Number of legs • Respiration • Reproduction • Thermic • regulation REPTILE LUNGS OVIPAROUS EXOTHERMIC HUEVOS AMNIÓTICOS
  29. 29. • Video amazing animals
  30. 30. • Experimento plantas • Exp plantas 2
  31. 31. Birds • Wings • Hollow and light bones • Corneous beak • Feathers • Endothermic • Lungs and air sacs • Oviparous, internal fertilization. • They incubate the eggs
  32. 32. Buzzard • It is • Fur? Hair? • Number of limbs • Hollow bones? • Respiration • Reproduction • Amniotic eggs? • Thermic regulation FEATHERS LUNGS OVIPAROUS ENDOTHERMIC HUEVOS AMNIÓTICOS
  33. 33. Mammals • Skin covered by hair • Mammary glands • 4 limbs • Endothermic • Viviparous
  34. 34. Mammal groups • Monotremes • Marsupials • Placental mammals
  35. 35. Platypus
  36. 36. Echidna
  37. 37. Dolphin • It is • Respiration • Reproduction • Thermic regulation MAMMAL LUNGS VIVIPAROUS ENDOTHERMIC
  38. 38. Bear • It is • Skin • Number of legs • Respiration • Reproduction • Thermic regulation
  39. 39. Marsupials • Video nacimiento canguro
  40. 40. CLASSIFY THESE ANIMALS • BAT • KANGAROO • DUCK • PLATYPUS • ROOSTER • TOAD • NEWT • SEA GULL • CHAMALEON • COBRA • LIZARD • CROCODILE • SALMON • RAY • PENGUIN
  41. 41. IMPORTANT THINGS • EXOTHERMIC /ENDOTHERMIC • OVIPAROUS-VIVIPAROUS-OVOVIVIPAROUS • HUEVOS AMNIÓTICOS • LINEA LATERAL DE LOS PECES (LATERAL LINE SYSTEM)
  42. 42. What group or animal has: • Gills • Gills with operculum • Gill openning without operculum • A lateral line • Scales • Fins • Cartilaginous skeleton
  43. 43. • Tail • Webbed feet • Carapace • Poisonous teeth • Strong jaws • Bifidous tongue • Feathers • Hollow bones
  44. 44. • Air sacs • Wings • Beak • Lays eggs • Mammary glands • Marsupium
  45. 45. COPY THIS QUESTION • What means the word “AMPHIBIAN “(Anfibios)?
  46. 46. Egagropilas (Puke balls/pellets) • http://onemomswalk.blogspot.com.es/201 0/10/moo-cows-owl-puke-and-report- cards.html
  47. 47. ¿Qué son los huevos que nos comemos? • Óvulos de gallina no fecundados.
  48. 48. Ide ntify the e xtrang e anim al • Tiburón, trucha, salmón, delfín, atún • Salmón , tiburón, trucha, sardina, atún • Turtle, snake, lizzard, frog, salamander. • Platypus, kangaroo, whale, penguin, monkey. • Avestruz, murciélago, cigüeña, paloma, gorrión.
  49. 49. • Find out for each picture: –Group of vertebrates: Is it a mammal, fish, reptile, amphibian or bird? –Main characteristics of each animal
  50. 50. Questions-Test link • Why is a dog an example of a vertebrate? • Why do fish have gills? • Which is a characteristic of most amphibians? • What is one way mammals are different from other vertebrates? • What is the main difference between an amphibian and a fish?
  51. 51. • Vertebrates esquemas • http://www.sheppardsoftware.com/content/ animals/kidscorner/classification/kc_classi fication_reptiles.htm • Games • http://scienceandfunmh.blogspot.com.es/2 013/01/vertebrates-games-and-more.html

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