How a jellyfish looks like?

Answer 1

Jellyfish have two major body forms throughout their life. The first form is called the polyp stage and is characterized by either a non-moving (sessile) stalk that catches food drifting by or a similar form that is free-floating. Their mouth and tentacles are located anteriorly, facing upwards. The second form looks like a saucer and is called the medusa stage. It is characterized by a round (radially symmetric) dome-shape body plan with food-catching tentacles hanging down. It is this form which is most able to respond to and interact with its environment and is also the form with which people are most familiar. Some jellyfish don't have a stalked stage. With few exceptions, jellies are dioecious, which means that each animal is either male or female. A group of animals releases sperm and eggs which may mix in the water column and become fertilized or, in the case of the moon jelly (Aurelia), the eggs become lodged in pits on the oral arms, which form a temporary brood chamber where fertilization takes place. After fertilization and initial growth, a larval form, called a planula, develops from the egg. The planula larva is small, and is covered with cilia, similar in appearance to a tiny hairy football. The planula larva settles onto a firm surface, and changes into a polyp. The polyp resembles a tiny sea anemone- cup-shaped with tentacles surrounding a single opening. Once the polyp begins reproducing asexually by budding, it's called a segmenting polyp, or a scyphistoma. New scyphistomae may be produced by budding or new, immature jellies called ephyra may be formed. These young jellies swim off and grow up into adults. Many jellyfish can bud off new medusae directly from the medusan stage also. Like all other cnidarians, jellyfish have stinging cells called cnidocytes which contains the stinging nematocysts on their tentacles. Whenever a prey comes in contact with a tentacle, hundreds to thousands of nematocysts fire one or another type of "hook and line" into the prey. These stinging cells are thus able to latch onto the prey and the tentacles bring the prey item into their large "mouth" for digestion.These cells are activated by a simple but precise nervous system called a nerve net which is located in the epidermis of the jellyfish. Impulses to these nerve cells are sent from the nerve rings that have collected information from the environment of the jellyfish through the rhopalial lappet, which is located around the animal's body. Jellyfish also have "eyes" or ocelli that cannot form images, but are sensitive to light. Jellyfish do not have a specialized digestive system, osmoregulatory system, central nervous system, respiratory system, or circulatory system. They are able to digest with the help of the gastrodermis that lines the gastrovascular cavity, where nutrients from their food is absorbed. They do not need a respiratory system since their skin is thin enough that oxygen can easily diffuse in and out of their bodies. Jellyfish move using a hydrostatic skeleton that controls the water pouch in their body to manipulate their movements. Most jellyfish are not dangerous to humans but a few are highly toxic, such as the Cyanea capillata. Contrary to popular belief, the menacingly infamous Portuguese Man o' War (Physalia) isn't actually a jellyfish, but a colony of hydrozoan polyps. Many aquaria, such as Monterey Bay Aquarium, Vancouver Aquarium, and Maui Ocean Center, feature jellyfishes in display. Often the tank's background is blue with the animals illuminated by side lighting to produce a high contrast effect. In natural conditions, many of the jellies are so transparent that they can be almost impossible to see. A group of jellyfish is often called a 'smack'. Many species of jellyfish can congregate into large swarms or 'blooms'. The formation of these blooms is a complex process that depends on ocean currents, nutrients, temperature and oxygen content.

Answer 2

they are pink,orange, brown, but are mostly white or see through

ok, they can have many colors from white, blue to pinkish red, they have a half curcular head with line and ribbon like tentacles.

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Answer 3

A jellyfish looks like a piece of clear plastic floating in the water. Their bodies are made almost entirely of water which gives them their distinct appearance.

Answer 4

The mouth is located in the centre of the inferior side of the bell.

Answer 5

Under the stomach. It's mouth is also it's anus.

Answer 6

Go onto Google and type in 'Jellyfish' into images It looks like a turtle shell with strings attached to it.

Answer 7

It's stomach. When a jellyfish catches something edible, it's passed into the mouth by the tentacles. The mouth opens directly into its stomach.

Answer 8

it look's like you you dump