The NAD Team has come up with a list of honors that can possibly be earned at home during the COVID-19 shut-down.
Check it out!
El liderazgo de la División Norteamericana he creado una lista de especialidades que posiblemente se pueden desarrollar en casa durante la cuarentena del COVID-19.
¡Búsquelo aquí!

Adventist Youth Honors Answer Book/Nature/Echinoderms

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South American Division


Skill Level 2
Year of Introduction: 2012

Limited Availability

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.