DiNitto
Collections I
Name ___________________________
Phylum Echinodermata Webquest
Go to the Phylum Echinodermata links on my webpage:
Click on Phylum Echinodermata 1 to answer the following questions ON A
SEPARATE PIECE OF PAPER… NO CREDIT WILL BE GIVEN TO ANSWERS ON
THIS PAPER!
1. What organisms are included in this phylum?
2. What is unique about this phylum?
Click on the “fossil record” icon:
3. When do the first echinoderms appear in the fossil record?
4. When did sea stars first appear in the fossil record?
Click on the “Life History and Ecology” icon:
5. What is the size range for echinoderms?
6. Where in the water column can most echinoderms be found?
7. List the various lifestyles of echinoderms. Describe the 4 listed.
8. Describe basic echinoderm reproduction and life cycle.
Click on the “Systematics” icon:
9. What are the five classes of echinoderms? Be sure to include their
common name!
Click on the “More on Morphology” icon:
10. What have echinoderms been compared to?
11. What are echinoderm skeletons made up of? Include what it looks like
microscopically!
12. Describe the water-vascular system.
13. What are tube feet (or podia) and how are they linked to the watervascular system?
14. What are pedicellaria?
15. List the various components of the echinoderm body plan. Don’t
forget the coelom!
16. What is unique about how a sea star feeds?
17. What is unique about how a sea urchin feeds?
18. Describe the respiratory and circulatory system of a typical
echinoderm.
19. What type of nervous system do echinoderms possess?