ZOO LECTURE ECHINODERMATA & HEMICHORDATA

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Author:
tbby5065
ID:
76315
Filename:
ZOO LECTURE ECHINODERMATA & HEMICHORDATA
Updated:
2011-03-30 21:41:23
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ECHINODERMATA HEMICHORDATA
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ECHINODERMATA & HEMICHORDATA
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  1. Name the 3 characteristics of Echinoderms
    • Radial Symmetry
    • Water Vascular System
    • Endoskeletion of CaCO3
  2. Explain the development of Echinoderms.
    As larve they are bilateral, as adults they are pentaradial
  3. What is the function of Echinoderms Calcium Carbonate endoskeleton?
    Protection, Support & Movment
  4. Dermal Branchiae are used for what?
    respiration, gas exchange by increasing surface area.
  5. What is the digestive gland called in an Asteroidiea?
    Pyloric Ceca
  6. Which class of Echinodermata has long skinny arms and is also fast moving?
    Ophiuroidea
  7. Which class of Echinodermata are
    Scavengers and grazers and use “Aristotle’s lantern”?
    Echinoidea
  8. Which class of Echinodermata has long stalks with ciliated arms?
    Crinoidea

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