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- Cnidaria - Wikipedia
Cnidarians mostly have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths surrounded by tentacles that bear cnidocytes, which are specialized stinging cells used to capture prey
- Cnidarian | Definition, Life Cycle, Classes, Facts | Britannica
cnidarian, any member of the phylum Cnidaria (Coelenterata), a group made up of more than 9,000 living species Mostly marine animals, the cnidarians include the corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans
- Cnidarians - Examples, Characteristics, Reproduction, Lifecycle
What are cnidarians with types, examples, habitat How do they eat, move, and reproduce Also, know their body symmetry, lifecycle, and organ system with pictures
- Cnidarians - MarineBio Conservation Society
Cnidarians are a diverse group of animals that belong to the phylum Cnidaria They are characterized by the presence of specialized stinging cells called cnidocytes, which are used for defense and capturing prey Cnidarians exhibit a wide range of body forms, including polyps, medusae, and colonies
- A Guide to the Cnidarians: Basics and Beyond - ThoughtCo
Cnidarians all have a simple body with a mouth and tentacles for feeding Some cnidarians can swim like jellyfish, while others, like corals, are fixed to one spot Cnidarians have special cells to sting and capture prey, helping them eat and defend themselves
- Cnidaria (corals, sea anemones, jellyfish, and relatives . . .
If collar cells and spicules are defining characteristics of the Phylum Porifera, then nematocysts define cnidarians These tiny organelles, likened by Hickman to cocked guns, are both highly efficient devices for capturing prey and extremely effective deterrents to predators
- Introduction to Cnidaria
Cnidarians are incredibly diverse in form, as evidenced by colonial siphonophores, massive medusae and corals, feathery hydroids, and box jellies with complex eyes Yet, these diverse animals are all armed with stinging cells called nematocysts
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