Today's Blog is written by Caitlyn.
Annelids are one of the most complex organisms. Take the palolo-worm for example. They are fully capable of regeneration when they are cut in half. This allows them to reproduce asexually by releasing an end of their tail. This then creates a complete organism. But only the tail can be cut off and regenerated because the worm must have the piece contains the clitellum and at least 10 segments behind the clitellum.
Source:http://invertebrates.si.edu/worms.htm
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