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crayfish dissection test

  1. to what kingdom does crayfish belong?
    Animalia
  2. to what phylum does crayfish belong?
    Arthropoda
  3. to what subphylum does crayfish belong?
    Crustacea
  4. Describe the crayfish respiratory system.
    • - pinkish-brown gills
    • - under the carapace, above the legs
  5. Describe the crayfish circulatory system
    • - heart (located medially on the dorsal side)
    • - open circulatory system: the heart pumps blood toward the head, then it flows backwards, bathing organs; it collects in sinuses (hollows) around the heart
  6. Describe the crayfish nervous system.
    • - a simple brain
    • - vental nerve cord
  7. Describe the excretory system of the crayfish
    -green glands in the head filter blood and release waste through pores near the antennae
  8. Describe the crayfish digestive system.
    • - maxilipeds ("jaw feet") bring food into mouth
    • - mandibles (jaws) for biting food
    • - mouth
    • - stomach, which contain teeth made of chitin
    • - intestine absorbs nutrients
    • - anus releases waste
  9. Describe the reproductive system of the crayfish.
    • - female crayfish have ovaries which produce eggs
    • - male crayfish have testes which produce sperm
    • - female crayfish carry fertilized eggs with swimmerets until they hatch
Author
angeleenie70
ID
48188
Card Set
crayfish dissection test
Description
crayfish dissection test
Updated

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