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Latest revision as of 22:28, 20 July 2022
Skill Level
2
Year
2012
Version
26.11.2024
Approval authority
South American Division
1. In what environment can echinoderms be found?
2. What does the word Echinodermata mean, the name that characterizes the echinoderms?
3. Name four characteristics of the phylum Echinodermata.
4. What kind of symmetry do the echinoderms have? What does this mean?
5. Name the main characteristics and give five examples of the classes of echinoderms:
- a. Asteroidea
- b. Echinoidea
- c. Ophiuroidea
- d. Holothuroidea
- e. Crinoidea
6. What do you do in the event of an accident with sea urchins?
7. In a practical class identify, discover and explain the function of the following structures:
- a. Starfish:
- i. Ambulacral grooves or feet
- ii. Madreporite plate
- iii. Mouth
- iv. Anus
- b. Sea urchins:
- i. Aristotle's Lantern
- ii. Spines
- iii. Mouth
- iv. Endoskeleton
8. Make a collection containing 20 pictures or photographs of different species of echinoderms. Include the common name, scientific name, family and order.
9. How do starfish feed?
10. Do some research about sea urchins and some species that have poison.
