Introduction: A short note regarding Rotifers and Nematodes: Systematists formerly combined these two phyla as classes within Phylum Aschelminthes. In this course, we treat now them as two separate ...
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Dr. Gur Mizrahi, Laboratory for remote sensing of marine systems Jellyfish belong to the phylum Cnidaria and have existed for around 500 million years without any morphological changes.
The animal kingdom contains a vast array of animals capability of remarkable regenerative abilities, but known are quite as adept at this healing task than sea-swelling Cnidarians, such as hydra ...