hydra
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hydra |
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| navigate by keyword : anatomy animal asexual asexually background biology budding cnidaria diagram drawing education fauna freshwater green hydra hydrozoa illustration isolated laboratory life light little living macro medicine micro microbiology microorganism microscopic model organism plankton plate pond predator protozoa regeneration reproduce reproduction school science scientific sketch small stream symmetry training water white |
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| Hydra is a genus of small, simple, fresh-water animals that possess radial symmetry. Hydra are predatory animals belonging to the phylum Cnidaria and the class Hydrozoa. They can be found in most unpolluted fresh-water ponds, lakes, and streams in the temperate and tropical regions and can be found by gently sweeping a collecting net through weedy areas. They are multicellular organisms which are usually a few millimetres long and are best studied with a microscope. Biologists are especially interested in Hydra due to their regenerative ability; and that they appear not to age or to die of old age. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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