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7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
7th Grade Ch. 4 Sec. 3 Mammals
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7th Grade Ch. 4 Sec. 3 Mammals

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  • 1. Ch. 4 Sec. 3 YouTube video-Bill Nye Mammals song
  • 2.  
  • 3. Characteristics of mammals
  • 4. Characteristics of mammals vertebrates
  • 5. Characteristics of mammals 4-chambered heart
  • 6. Characteristics of mammals skin covered with fur or hair
  • 7. adaptations that keep mammals warm ` fat (blubber) fur hair
  • 8. Characteristics of mammals different shaped teeth
  • 9. 4 types of teeth incisors canines premolars & molars cut into food stab & tear grind & shred
  • 10. Diet: Herbivores, Carnivores, and Their Teeth video clip
  • 11. mammal reproduction Most young develop in mother’s body Young fed w/ milk made in mother’s mammary glands
  • 12. Mammal Mothers
  • 13.  
  • 14. Introduction to Mammals video clip
  • 15. Characteristics of Mammals endothermic vertebrate
  • 16. How mammals breathe
    • thru. lungs
    • breathe in & out b/c of rib muscles &
    • diaphragm =
    • large muscle located @ bottom of chest
  • 17.  
  • 18.  
  • 19. 3 groups of mammals monotremes marsupials placental mammals classified into groups based on how young develop
  • 20. 1. MONOTREMES  
    • lay eggs
    • 3 kinds :
      • duck-billed platypus
      • 2 species of echidna ("spiny anteaters“)
  • 21. DUCK - BILLED PLATYPUS newborn platypuses nursing from their mother platypus egg                     
  • 22. Video clip-Duck Billed Platypus
  • 23. ECHIDNA (spiny anteater) Their tongue is very long and sticky and is perfect for catching the hundreds of termites and ants that make up their staple diet. Echidna eggs
  • 24. ECHIDNA (spiny anteater) This monotreme’s tongue is very long and sticky and is perfect for catching the hundreds of termites and ants that make up their staple diet.
  • 25. Both the duck-billed platypus and the spiny anteater are native to Australia.
  • 26. BrainPOP-Monotremes
  • 27. 2. MARSUPIALS
    • give live birth but @ an early stage of development
    • develop in pouch
    • short gestation period
  • 28.  
  • 29.
    • The only marsupial from North America:
    “ Playing possum”
  • 30.  
  • 31. Female opossums may give birth to 21 young at a time.
  • 32. This opossum is not pregnant. She is carrying 9 infants in her pouch.
  • 33. Opossums can grasp branches with their long tails.
  • 34. Marsupials develop in their mother’s pouch.
  • 35.
    • A female kangaroo gives birth to only one baby, called a joey, at a time.
  • 36. One Week Jelly bean size 8 Weeks Man's little finger size Ten Weeks Palm size 6 Months 800 grams KOALA LIFE CYCLE
  • 37. 3. PLACENTAL MAMMALS
    • develop inside mother’s body until body systems can function independently
    • classified into groups based on how:
    • they eat
    • their bodies move
    • examples :
    • humans
    • bats
    • cows
  • 38. placenta
    • organ in pregnant female mammals that passes materials between mother & embryo
    umbilical cord
  • 39. gestation period
    • length of time between fertilization & birth
    • the larger the animal 
    • the longer the gestation
    • period
    The gestation period of the largest land animal, the African elephant, averages about 21 months. A house mouse gives birth after a gestation period of only about 20 days!
  • 40. Mammal Gestation Period
  • 41. Placental mammals Insect-eaters Toothless mammals Mammals with trunks Star-nosed mole Hooved mammals
  • 42.  
  • 43.  
  • 44. (rodents)
  • 45. rodents
  • 46.
    • Bats are the only mammals truly able to fly.
    Bats are the only mammals that can fly.
  • 47. primates
    • large brains
    • opposable thumbs- thumb can touch other 4 fingers
  • 48.
    • It’s question time !!!
    What have you learned?
  • 49. Characteristics of Mammals endothermic vertebrate
  • 50. diaphragm large muscle located at bottom of chest that helps a mammal breathe
  • 51. 1. MONOTREMES  
    • lay eggs
    • 3 kinds :
      • duck-billed platypus
      • 2 species of echidna ("spiny anteaters“)
  • 52. 3 adaptations that keep mammals warm fat (blubber) fur hair
  • 53. 4 types of teeth incisors canines premolars & molars cut into food stab & tear grind & shred
  • 54. mammal reproduction Internal fertilization Most young develop in mother’s body Young fed with milk produced in mother’s mammary glands
  • 55. gestation period
    • length of time between fertilization & birth
    • the larger the animal 
    • the longer the gestation period
    The gestation period of the largest land animal, the African elephant, averages about 21 months. A house mouse gives birth after a gestation period of only about 20 days!
  • 56. primates
    • large brains
    • opposable thumbs- thumb can touch other 4 fingers
  • 57. (rodents)
  • 58. 2. MARSUPIALS
    • give live birth but @ an early stage of development
    • develop in pouch
    • short gestation period

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