Jellyfish

yes of course a jellyfish can cause damage to people!!

Jellies can be any color.
Jelly fish are mostly made of water but they can have pigments or even symbiotic algae. This means that some species of jelly fish are clear and others have colours.
Jellyfish come in a big variety of colors. They are white, blue, pink, yellow, green, purple, red, orange, and striped. Each one of those colors represents the same thing. They are all bright colors and tell their enemies that they are dangerous fish.
Jellyfishes are translucid, however some of them can have coloured parts with red, pink or yellow pigments or with microorganisms inside them, which give green, brown or blue colorations. Pigments, usually, give red, pink or violet colourations. * Mycroorganism like zoochlorellae are greenish. * Zooxanthellae are brownish. * Some blue colourations can be dued to the presence of Cyanobacteria. Some jellyfishes, like Pelagia noctiluca or some Trachymedusae, are bioluminescent and can emitt greenish or multicoloured flashes.

do you mean the transparent ones? then yes.

Crustaceans, like other crustaceans, have bilateral symmetry. Bilateral symmetry means something has symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side.

The top part, the bell.

The Portuguese Man-Of-War lives in the Indian and Pacific oceans, where they eat small fish and are usually found in swarms.

Jellyfish have adapted to their environment with sense organs that help them to detect the touch of any other organism to find food. They also have a simple digestive system and respiratory system, making them able to survive in a variety of water types.

Extremely doubtful. There's no scientific reason I'm aware of that this should work. However, folklore has carried this tale forever. If there is any basis, it might be that urine is both acidic and saltier than fresh water, and thus is less likely to activate unfired nematocysts (the stinging cells) than fresh water would be.

no they are just mushy

All jellyfishes sting; however the "burning" effect is due to the inoculation ofallergens: jellyfishes who don't inoculates allergens don't cause a "burning" (anaphylactic) reaction, like rhizostomeae jellyfish; however they could inoculate some other substances like hemotoxic poisons. Clear jellyfish do not sting, if they do then the effects aren't large enough for a human to feel, coloured jellyfish do sting and it will be painful

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It is true that most clear (and colored, for that matter) jellyfish either don't have a venom strong enough to be dangerous to humans, or their stingers can not penetrate human skin. However, it is totally incorrect to say that all clear jellyfish are harmless. The most venomous and deadly of all jellyfish are very clear and virtually impossible for humans to spot while wading or swimming along the shore.

Although Chironex fleckeri have bells the size of a basketball and trailing tentacles up to 30 feet long, they are so transparent that seldom does a victim ever see the culprit that stung them. Their sting is so painful that many claim that amputation of the envenomated limb would be preferable to enduring the excruciating pain. Probably less than 50 humans a year die from these jellies, but thousands of victims would almost prefer that outcome.

Another deadly, but much less lethal jellyfish is the species, Carukia barnesi. It is both clear and smaller than a thumbnail. It was so elusive to scientists that it wasn't until 1964 that Dr. Jack Barnes finally captured and identified the species that was causing 'Irukandji syndrome' and responsible for several deaths. To confirm that this jellyfish caused Irukandji symptoms, Dr. Jack Barnes stung himself, his son, and a lifeguard. All three had to be hospitalized with life threatening symptoms.

The initial sting from an Irukandji jellyfish is only mildly painful, and sometimes even goes unnoticed. But a half-hour later, extreme muscle cramps, shooting pains over the body especially in the chest and stomach, vomiting, and convulsions then ensues. The violently painful symptoms, even under a full dose of morphine, causes some of the victims to claim that they would rip their skin off if possible.

The answer to your original question, however, is that all jellyfish sting. They are in the phylum, Cnidaria, which means 'nettle-like', and they all have microscopic stingers variously called cnidocytes, cnidoblasts, or nematocytes. The vast majority of jellyfish, however, are innocuous to humans. Only about 100 species out of many thousands of Cnidarians are considered venomous to humans.

Depends upon type of fish .

Yes. An invertebrate is an animal without a spinal column. Jellyfish do not have spinal columns, or any skeleton of any kind.

coelenterateJelly fish have a body plan that is described by biologists as coelenterate. They are eyeless, brainless, boneless and made up of 95% water.

Jellyfish and coral polyps are both species that are not bilaterally symmertrical, they are radially symmetrical, as are sea anemones which are also related to those species.

No, a jellyfish is not a fish. It's invertebrate.
An Jellyfish, despite it's name (Jelly-FISH), Is not truly an Jellyfish. It is made of 95% water, and doesn't have the proper organs/ bones to be a fish. (Such as: Example, Jellyfish does not have a brain, gills, bones, and blood.) Jellyfish belong in an group name the invertebrates, which is animals that do not have an backbone.
No. One obvious distinction is jellyfish don't have a backbone (vertebrae).

Jellies are animals.

Vinegar (3-10% aqueous acetic acid) may be used as a common remedy to help with box jellyfish stings. Clearing the area of jelly, tentacles, and wetness further reduces nematocyst firing. Scraping the affected skin with a knife edge, safety razor, or credit card may remove remaining nematocysts. Immunobased antivenins have been available since the 1970s; administration requires medical personnel and refrigeration and are used in extreme cases as with regard to the box jellyfish.

The pain of being hurt by box jellyfish is excruciating and can send the victim into anaphylactic shock. The Box Jellyfish has delicate tentacles. In the incident of extensive contact with its tentacles, cardiac arrest might occur within minutes.

Jellyfish have cells called cnidocytes, which contain nematocysts, and located on their tentacles, mainly. Whenever a prey comes in contact with cnidocilia (structures of the cnidocytes), hundreds to thousands of cnidae (filaments of the nematocysts) are ejected into the prey 's direction; nematocysts' cnidae inoculate a poisonous or allergenic mixture into the prey 's body; the prey , if live, die by osmotic shock, paralysis or anaphylactic shock and is then brought to the mouth with tentacles or with oral arms. Jellyfish of the Order Rhizostomeae have no tentacles, instead they have cnidocytes on the manubrium (oral arms).
Since jellyfish do not have eyes, they have to hunt passively. This means they just wave around their tentacles and hope for something to brush against its tentacles. When something does come in contact with its tentacles, it will fire out nematocysts and inject the prey with toxin and hope to have paralyzed or killed the prey.

they have been found with more than 1,000,000 off spring before they were killed they release a 1,000,000 off spring to keep there species alive

It is called a jellyfish because it lives in the sea, although it isn't a fish. The "jelly" comes from the texture of its body, which is wet and slimy, similar to jelly.

Their physical characteristics resemble those of jelly. They have a watery texture (although you wouldn't want to go and touch one), and they can appear transparent or translucent.

There are six classes of mollusks. The Gastropoda, Monoplacophores,Polyplacophores(chitons) ,Scaphopods, Bivalves, andCephalopods. The Gastropoda are the most varied and the widest collected shells.

most people call then seven legs seven seas or seven stings

why do they call them seven legs?-Because they have seven legs in the early 1898 john Stevens was the first person to discover a jelly fish and named it seven legs.

why do they call them seven seas?-beause they are all over the world in 3000 BC (i do not know his name) discovered all over the world and saw jelly fish and said seven seas

why do they call them seven stings?- sponge bob he got sting 7 times but jelly fish do not sting so do not believe sponge bob foolishness!!!!

The sea nettle jellyfish are mostly found in the Atlantic Ocean and the Pacific Ocean. They prefer to be in the colder ocean waters.