Cnidarians

The parents are Echidna and Typhon

They are filter feeders that draw water into their pores, filter out tiny sea invertebrates that are absorbed and digested, and expel the remaining water in a continuous basis.

Medusae and complex swimming colonies can sense tilt and acceleration by means of chambers lined with hairs which detect the movements of internal mineral grains. If the body tilts in the wrong direction, the animal rights itself by increasing the strength of the swimming movements on the side that is too low. They also have "little eyes" known as ocelli, which can detect the direction from which light is coming. Although these probably do not form images, their lenses simply produce a clearer indication of the direction from which light is coming.

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I have to add that most species of box jellyfish have four groups of two complex eyes, and either two or four simpler ocelli, for a total of up to twenty four eyes. The complex eyes are similar to our own and have corneas, lens, and retinas. Tests have demonstrated their ability to navigate obstacles and recognize colors by way of their vision, although it has yet to be demonstrated that they can track prey. Their nervous system is not centralized, but it is a much more complex nerve net than other species of jellyfish. So far, some primitive learning and memory ability has been demonstrated in experiments.

Some facts about hydra are that if you cut off one head another grows back. Another fact is that it's a myth.

One adaptation of a cnidarian is the ability to regrow an entire body part. They also use stinging tentacles to catch prey. Jellyfish are cnidarians.
Adaptations? Stinging tentacles (cnidoblasts) - pronounced nie-doe-blasts - sensitivity to light, pulsing motility, life cycle stages that take advantage of protected and food rich environments.

Well hydra has no specialized organs for respiration but exchange of gases is carried ou' by entire bodyy surface. Oxygen and carbon dioxide diffuse from the body digestive system. Thus an efficient exchange is carried ou by enteron..

A hydra does not have cephalization.

The Water Monster or Sea Serpent

how do hydra move

yes sea anemones are in fact alive with there appearence they may not look it but they are very much alive

Yes; many cnidarians have an exoskeleton.

it eat the people and the p

The hydra takes in nutrition through the use of tentacles. The muscles of the organism absorb the nutrients as there is no circulatory, respiratory or urinary system.

like spokes on a wheel

All Cnidarians have nematocysts as a specialized organelle. Cnidarians use their nematocysts to capture prey and as a defense mechanism against predators.

Step 1, A budd, looking like a bump will appear onto the adult hydra. Step 3, Tectancles that look like long strains will help the new to be hydra get food. Step 4, the new hydra will depart from adult hydra and will start it's journey by it's self. I am sorry I do not know step 2. Step 1, A budd, looking like a bump will appear onto the adult hydra. Step 3, Tectancles that look like long strains will help the new to be hydra get food. Step 4, the new hydra will depart from adult hydra and will start it's journey by it's self. I am sorry I do not know step 2.

what is the arm like structures surrounding the mouth of cnidarians

Yes, Hydra is Multicellular.

cnidarians move from place to place. sponges dont.

Appendages in cnidarians are called tentacles . They are used in food capture and defense . Stinging cells are present in tentacles .

Same with how you make a lowrider hop except only up and down.

Go up with W, then press 2, to hide wheels, and hold 8, until camera will change. Goog flying! :)

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parts of a hydra

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Because I cannot post a link, above there's directions to site with proper credit to "PenmatchaNagaVenkataGayathri" answering a question about Hydrozoa with better detail (when I couldn't find a reply on Answers to cut it.)

-hope it helps

It is called a polyp. Some examples are sea anemones and hydras.

it would make them less capable of capturing food