is the jellyfish a fish?
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Jellyfish are not really fish, of course, because a fish's anatomy is centered around its backbone, whereas the jellyfish is a dome-shaped invertebrate. ... The cnidocytes on jellies' tentacles discharge venom from a sac called a nematocyst. These help them to capture floating prey in the water column.
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Yes, jellyfish are very important animals in the ocean. ... Even humans eat jellyfish – yummy! Jellyfish also provide habitat for many juvenile fishes in areas where there are not many places to hide. They can also protect the small fish from being eaten by predators with their stinging cells.
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These include, sea nettles, moon jellies and jellyfish. The jellyfish found in this class are dubbed "the true jellyfish". ... Yes, they have sac shaped bodies and long tentacles that sting painfully, but they are still structured differently than those organisms of Class Scyphozoa.
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Other species of jellyfish are among the most common and important jellyfish predators. Sea anemones may eat jellyfish that drift into their range. Other predators include tunas, sharks, swordfish, sea turtles and penguins. Jellyfish washed up on the beach are consumed by foxes, other terrestrial mammals and birds.
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A jellyfish breathes by taking in oxygen from the seawater through its skin so as soon as it is on dry land it can no longer live. ... In fact, a jellyfish is about 95% water.
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['Box jellyfish (aka Boxfish, Sea Wasp, Fire Medusa or Stinger) ... ', 'Taipan snake. ... ', 'Saltwater crocodile (aka salties) ... ', 'Blue-ringed octopus. ... ', 'Stonefish. ... ', 'Redback spider (akaAustralian black widow) ... ', '7 and 8. ... ', 'Great white shark.']
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Jellyfish can also be used as fertilizers for agriculture or as aquaculture feed. "Fish in fish farms are currently fed with captured wild fish, which does not reduce the problem of overfishing, but increases it.
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The jellyfish is a carnivorous animal and despite its appearance, the jellyfish is a remarkably efficient predator. ... Jellyfish prey on all kinds of aquatic animals such as small fish, eggs and invertebrates along with anything else that gets stuck in their tentacles.
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They have 8 arms, each frilly in appearance. These frills actually contain their small stinging tentacles which surround hundreds of little mouths! The sting of the barrel jellyfish is not normally harmful to humans, though if you find one on the beach it's best not to handle it as they can still sting when dead.
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Jellyfish life cycle. Jellyfish have a stalked (polyp) phase, when they are attached to coastal reefs, and a jellyfish (medusa) phase, when they float among the plankton. The medusa is the reproductive stage; their eggs are fertilised internally and develop into free-swimming planula larvae.
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Because their body is 95% water, they are perfectly camouflaged. The body of a jellyfish exhibits radial symmetry and is divided into three main parts: the umbrella, the oral arms (around the mouth) and the stinging tentacles. They have an internal cavity, in which digestion is carried out.
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They're low in calories and fat, and rich in protein and collagen. The little fat it contains is the essential omega-3 and omega-6 unsaturated fatty acids. About 25 to 30 species of jellyfish in the world are edible, including a few in Australian waters.
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But despite their name, jellyfish aren't actually fish—they're invertebrates, or animals with no backbones. Jellyfish have tiny stinging cells in their tentacles to stun or paralyze their prey before they eat them. Inside their bell-shaped body is an opening that is its mouth.
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The Jellyfish that appear in Animal Crossing: New Leaf cannot be caught. Instead, they are obstacles when the player is deep-sea diving and will sting the player on contact.
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What Does Jellyfish Symbolize? Jellyfish is a symbol of love, so if it appears in your life, it means that you should trust your heart and follow your own emotiones. It is also a symbol of acceptance and balance. ... The jellyfish is a symbol of faith, intuition and sensitivity as well.
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Despite being referred to as a jellyfish, the Portuguese man-o'-war is in fact a different species, as a true jellyfish is a single organism, and the Portuguese man-o'-war is actually a colony of separate polyps (organisms) that live together in the form of this species.
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Lacking brains, blood, or even hearts, jellyfish are pretty simple critters. They are composed of three layers: an outer layer, called the epidermis; a middle layer made of a thick, elastic, jelly-like substance called mesoglea; and an inner layer, called the gastrodermis.