Lab 24

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Author:
cep9654
ID:
272001
Filename:
Lab 24
Updated:
2014-04-26 16:05:20
Tags:
Vertebrates
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Description:
Final
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  1. In chordata, a rod-like, semirugid structure that extends the length of the body and lies between the gut and central nervous system tract.
    notochord
  2. In vertebrates, the notochord becomes the __
    spinal column
  3. (lancelets) Aquatic organism called Amphioxus
    Cephalochordata
  4. these animals replace the notochord with a spinal column of vertebrae composed of cartilage, bone or both. They also have a __ which is unique to this subphylum
    • vertebrata
    • liver
  5. meaning females give live births
    viviparous
  6. meaning to lay eggs
    oviparous
  7. when both egg and live birth takes place
    ovoviviparous
  8. jawless fish
    agnatha
  9. __ are marine dwelling while __ are found in marine and freshwater habitats
    • Hagfish
    • lampreys
  10. Lampreys are __
    parasitic
  11. cartilaginous fishes, skates, sharks, and rays
    condrichthyes
  12. bony fish
    osteichthyes
  13. __ is located over the gill slits
    operculum
  14. frogs, toads, and salamanders. They have a three chambered heart
    amphibia

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