Zoo Lec Amniotes

Card Set Information

Author:
tbby5065
ID:
81066
Filename:
Zoo Lec Amniotes
Updated:
2011-04-26 21:04:35
Tags:
Amniotes
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Description:
Amniotes
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  1. Are amniotes a monophyletic group?
    yes
  2. Mammals have what type of skull?
    synapsid
  3. Lizards, snakes, turtles, crocodiles & birds have what type of skull?
    diapsid
  4. What type of skull was the ancestral form?
    anapsid
  5. What was the function of the temporal fenestra?
    muscle attatchment associated with elevating the mandible
  6. What are the adatations of amniotes?
    • 1. tough (Beta-keratin) water-resistant skin (lipids)
    • 2. Amniotic egg
    • 3. internal fertilization & copulatory organs
    • 4. lungs w/ more surface area & aspirated with ribs and associated with muscles
    • 5. efficient & flexible cardiovascular system
    • 6.uric acid excretion
  7. Why is having Amniotic eggs beneficial of amniotes?
    allows terrestrials reproduction, faster growing & longer embryo, mineral storage & support
  8. Turtles belong to what order?
    testudines
  9. Incomplete seperation of __________ allows for ___ bypass when diving or in dormancy
    cardiovascular system, lung
  10. How is sex determined in turtles?
    warm temps produce females and colder temps produce males
  11. What order and class do lizards and snakes belong too?
    Class reptillia, order squamata
  12. what are some differences in snakes and lizards?
    • lizards: moveable eyelid, external ear opening, limbs
    • snakes: no limbs, no eyelid

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