BIO 3334 Lecture Notes - Lecture 3: Hydrozoa, Planula, Hexacorallia
12 Apr 2017
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Document Summary
Prevents the cnicite from not just shooting out. Anthozoan are biradial and have something really close to muscle they are sitting adjacent to many animals with biradial animals. Points to the fact that maybe this was more advanced and then they became sessile. Crating new ones and pushing mature ones up. The further up you go the more mature. Come off as ephyra that then becomes medua. Medusa is very dominant form in this life cycle. Canal system allows control of flow of water pattern of movement through canal (no anus) this is important. Box jelly is the most danergous cubozoan. Unique eye focus light on specifc object. Biomechanically is a complete eye but no nervous sytem to interpt lens weird. Often medusa stays attached to colony anchoring medusa. Hydra - no medusa probably an adaptation to fresh water.
