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Importance of Cnidaria

Please use the links below to gather information on members of phylum cnidaria

http://www.mbgnet.net/salt/oceans/animals/cnidar.htm

http://cas.bellarmine.edu/tietjen/images/cnidarians.htm

http://www.ucmp.berkeley.edu/cnidaria/cnidaria.html

http://www.pbs.org/kcet/shapeoflife/animals/cnidaria.html

http://www.buschgardens.org/infobooks/Coral/home.html

http://www.uvi.edu/coral.reefer/

http://www.soc.soton.ac.uk/GDD/hydro/atmu/ecology/

1. What is symmetry? What is radial symmetry?

2. What is a nematocyst?

3. What is a gastrovascular cavity?

4. Name and describe the two different body forms that manifest in all cnidarians.

5. What is a nerve net?

6. Give the names of the major groups in phylum cnidaria and give an example of each.

7. What is a coral reef?

8. Where are coral reefs found? Why?

9. What are dinoflagellates and what do they have to do with cnidarians?

10. Why are coral reefs so important?

11. What is causing the die-off of coral reefs? (there is more than one factor)

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