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they have the hearing organs,balance organs and lateral line

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they have the hearing organs,balance organs and lateral line

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they sting

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How does a jellyfish sting? - Neosha S Kashef

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Cnidarians for kids - Invertebrate animals - Natural Science for kids

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Oceanpedia   Critter finder   Cnidarian   Coral Reproduction

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Cnidarians are incredibly diverse in form, as evidenced by colonial siphonophores, massive
medusae
and corals, feathery hydroids, and box jellies with
complex eyes.

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The exclusively aquatic phylum Cnidaria is represented by polyps such as sea anemones and corals, and by medusae such as jellyfish. A polypoid or a medusoid cnidarian is a radially or biradially symmetrical, uncephalized animal with a single body opening, the mouth.

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** note: To enable closed captioning, please click on the small CC in the bottom right of the video controls.

Cnidarians were the first animals to have muscles and nerves to produce behavior. They were also the first to have a mouth and stomach to digest food. We learn about nematocysts when we watch an anemone catching a goby and two anemones fighting. Cnidarians come in various body shapes and have different ways of living. Corals are cnidarians that build reefs. One anemone, Stomphia, can swim away from predators by contracting its entire body. The jellyfish body plan is like an anemone that has been turned upside down and a diverse group of cnidarians thrives at all depths of the ocean.

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note: To enable closed captioning, please click on the small CC in the bottom right of the video controls. Cnidarians were the first animals to have muscles and nerves to produce behavior. They were also the first to have a mouth and stomach to digest food.

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Cnidaria - Wikipedia, la enciclopedia libre

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Los cnidarios ( Cnidaria, del griego κνίδη [ kníde], " ortiga") son un filo que agrupa alrededor de 10 000 especies​ de animales relativamente simples, que viven exclusivamente en ambientes acuáticos, mayoritariamente marinos.

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Cnidarians are water animals that have a simple, usually symmetrical, body with a mouth opening. Stinging cells on tentacles around the mouth catch pr

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-polyps
-jellyfish

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, like: Physalia physalis, Cyanea capillata, Chrysaora...

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📎 Photo

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And others are very big or are immortal
And others are very big or are  immortal

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📎 Introduction to Cnidaria

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📎 Cnidaria

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📎 Cnidarians: Life on the Move

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cnidarians have a class of bug call gastrobascular cavity in there, they take the nutrients and then they expel the nutrients

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cnidarians have a class of bug call gastrobascular cavity in there, they take the nutrients and then they expel the nutrients

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They take oxigen throw the surface of the body

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They take oxigen throw the surface of the body