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Hydra feeding (attached to) a daphnia . Hydra is a genus of simple fresh-water animals possessing radial symmetry. Hydras are predatory animals belonging to the phylum Cnidaria and the class Hy... | more...

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Channels: Microbiology

Tags: hydra bio kelly

Upload by: ayseni on 26-03-2009.

Duration: 1m 30s

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