Ctenophora

Sea walnuts and comb jellies {Ctenophora} are Ecdysozoa protostomes and live in ocean. They are similar to coelenterates but have only two tentacles. They have no stinging cells, move by cilia, can regenerate, and balance by a limestone-pebble otolith on a ciliated-nerve bed.

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Date Modified: 2022.0224