BIOL 172 Lab Prelab Quiz 12: Mammals

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tulipyoursweety
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BIOL 172 Lab Prelab Quiz 12: Mammals
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2013-11-24 17:35:07
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BIOL 172 Lab Prelab Quiz 12 Mammals
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BIOL 172 Lab Prelab Quiz 12: Mammals
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  1. List three characteristics shared by all mammals?
    • Three middle ear bones
    • Hair
    • Mammary glands
  2. Discuss the origin of the pig in Hawaii?
    Polynesian introduction
  3. What is the length of the estrous cycle in pigs? How does this compare in humans?
    • Pigs: 21 days
    • Humans: 28 day menstrual cycle
  4. What is the gestation periods in the pig? How
    long in humans?
    • Pigs: 112-115 days
    • Humans: 280 days
  5. Which is more distal to the elbow - the wrist or the hoof?
    hoof

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