Worlds of David Darling
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sea anemone tentacles
Tentacles of a sea anemone. Each tentacle contains stinging cells (nematocysts) used for defense and food capture. Photo: Dr. Anthony Picciolo
Finger-like appendages that are flexible, because they have no rigid skeleton. They are used for capturing prey, defense, reproduction, gas exchange, and light absorption. Cnidarians and molluscs are two kinds of organisms that may have tentacles.

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