Hydra, light micrograph

Hydra, light micrograph

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Caption: Hydra. Lightfield illuminated light micrograph of a section through a hydra, showing its tentacles (top) containing its stinging cells (cnidocytes). Hydra are small simple predatory fresh-water animals. They catch small swimming crustaceans such as daphnia using stinging and adhesive cells on their tentacles. Magnification: x36 when printed at 10 centimetres wide.


Keywords: 1, animal, animals, aquatic, biological, biology, cnidaria, cnidarian, cnidarians, cnidoblast, cnidoblasts, cnidocyte, cnidocytes, coelenterate, coelenterates, fauna, fresh water, freshwater, hydra, hydra sp., hydroid, hydrozoa, hydrozoan, hydrozoans, invertebrate, invertebrates, light micrograph, light microscope, light-field illumination, lightfield illuminated, micro-organism, micro-organisms, microbiological, microbiology, microorganism, microorganisms, nature, nematocyte, nematocytes, no-one, nobody, one, pond life, section, sections, single, stinging cell, tentacle, tentacles, tissue, white background, wildlife, zoological, zoology
