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hi well iam doing a thing on the structure of a jellyfish to but i can't find anything all i know is that they have sharp tentecals that shoot venom at over 20000 time.

YOU suck at this-__-

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13y ago
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9y ago

The box jellyfish have a box shaped bell or head, and can have up to fifgteen tentacles, that release poison when it senses a chemical found ob fish or it feels it's in danger.

yeah,yeah whatevs NIRD!!

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15y ago

Chironex fleckeri is the largest of the cubozoans, with a bell growing to about the size of a Basketball. It is pale blue in color and is virtually transparent, making it difficult to see and, as such, an extra danger to swimmers. It has four clusters of 15 tentacles trailing from each of the four corners of the bell. When the jellyfish are swimming the tentacles contract so they are about 15cm long and about 5mm in diameter; when they are hunting, the tentacles are thinner and about three meters long. The tentacles are covered with a high concentration of stinging cells called nematocysts which are activated by pressure and a chemical trigger: they react to proteinous chemicals. Box jellyfish are day hunters; at night they are seen resting on the ocean floor 'sleeping'. In common with other box jellyfish, Chironex fleckeri have four eye-clusters with twenty-four eyes. Some of these eyes seem capable of forming images, but it is debated whether they exhibit any object recognition or object tracking, and it is not known how they process information from their sense of touch and eye-like light-detecting structures due to their lack of a central nervous system Chironex fleckeri live on a diet of prawns and small fish and are themselves prey to sea - turtles ; which are the only creatures known to be immune to their stings.

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14y ago

There are several species of box jellyfish, the largest and deadliest of which is Chironex Fleckeri. It is the second most venomous after the tiny and almost totally undetectable Irukandji of NE Australia, but it is the deadliest "jelly" in the world because of its commonness. CF is not a true jellyfish (Scyphozoa) and belongs to the family 'cubozoa" meaning square. It is an almost invisible pale bluish purple in the water. Its' tentacles can be well over 3 metres long. It is common in all Australias' northern tropical waters and is most active during the monsoon season and associated overcast days. They are rare during the Dry Season, but still pose a threat.

When the tentacles touch prey (or you), they trigger millions of highly venomous nematocysts, stinging barbs, that "Blast" into the victim at incredible speed and power. The venom is extremely painful and fast acting, often causing cardiac arrest within minutes. Immediate application of household vinegar will prevent any further nematocysts from "firing". Immediate and prolonged resuscitation may be needed. Application of ice, antihistamines and pain killers will somewhat alleviate milder cases. ALL moderate and above sting victims need immediate hospitalisation and possible antivenin treatment.

Their venom is incredible. It is Neurotoxic which affects the nerves, Cardiotoxic which affects the heart, and Dermatonecrotical which leaves deep, painful and permanent scarring of the skin.

CF can swim up to 2 metre per second (walking pace) and have, believe it or not, reasonable eyesight with their many clusters of sophisticated lensed eyes. They are predatory hunters and also opportunists.

It sometimes makes me think that ALIEN is nothingcompared to this bad critter.

Other facts.

Up to 2Kg

Up to 15 tentacles on each corner, each at about 3 metres = 180 Metres of tentacles. Each adult tentacle has a minimum over 100,000 nematocysts and up to 500,000. OUCH!

Often called a Sea Wasp and stinger, but these names are being being phased out.

Cannot sting you through pantyhose or other clothing unless it gets inside. So, don't laugh at lifesavers in nylons.

Seasons to avoid swimming are from November to April, but they don't have a calender, so it may vary.

They are edible (Japanese style) but no-one I know has been game enough to try it.

Their hood, or body, is harmless and can be easily handled with bare hands by professional thrill seekers.

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10y ago

A box jellyfish is considered to be among the most deadly jellyfish. They live for less than one year. They are carnivores and invertebrates.

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14y ago

there are the different colours and they have bouncy things from finding nemo!!! haha no they are about 25 inchesandthy ae lilac or mauve.

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Q: What's the structure of a jellyfish?
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