How to remember the classification of Phylum Echinoderms ?

Question

Following are the PHylum Echinoderms, how to remember them :

• Asteroidea (sea stars)
• Ophiuroidea (brittle stars)
• Echinoidea (sea urchins and sand dollars)
• Crinoidea (sea lilies or feather stars)
• Holothuroidea (sea cucumbers)

Answer 1

Here is a simple trick to remember the classification of Phylum Ehcinoderms:

An ECHO

• An - Asteroidea
• E - Echinoidea
• C - Crinoidea
• H - Holothuroidea
• O - Ophiuroidea

This trick is really easy to remember because first three letters of ECHinoderms is same as ECHO. You can connect both very easily.