Tuesday, April 24, 2012

The (typical) Cnidarian life cycle:

A hydrozoan Cnidarian, such as a Moon Jelly, starts as a fertilized egg. As a planula, or larva, it swims around and eventually plants itself on a study surface. It reaches the polyp stage and buds off of itself. Then the polyp turns into a strobola and branches out, turning eventually into an ephyra, which is a smaller and lighter version of the actual medusa. As an adult medusa, it can lay eggs and start the whole process over again.

Life cycle of a Moon Jelly Game:

http://www.neaq.org/education_and_activities/games_and_activities/online_games/jellies_game.php

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