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| Echinodermata (Stachelhäuter) Echinoderms |
The trunk of the echinoderms includes five classes in the two subtribes. Characteristic of the five-pointed radial symmetry and the calcareous skeleton is on the spines can be located. Often these can be rotated by muscles in all directions. Echinoderms can crawl and swim in some cases. To move forward, but also as a tactile organ and to the detention are known as the ambulacral feet, which are controlled by the only group in this existing water vascular system.
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Echinodermata (Stachelhäuter) Echinoderms |
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