Jellyfish Questions?!?!?

I don't think you should be doing a jellyfish..You should be doing a cheetah.

;D

A whole year working with jellyfish? You'll get to know them real well :)

1. Jellyfish begin their lives as a multilayered polyp. I wouldn't be surprised if they evolved that way too - as a polyp that became layered and then later on evolved to let the individual layers swim freely. Don't write that it's a mystery unless you've read in a trustworthy text that it is. According to this article by Carl Zimmer the genes of jellyfish indicate that cnidarians are not as different from bilaterian organisms (animals with a right and a left side of the body, like humans, fish, and insects) as was previously thought.

http://community.livejournal.com/scyphistoma/4399....

2. They have no thermal regulation other than swimming towards a preferred temperature (which isn't necessarily warm - various species live in the Arctic and Antarctic sea or in the deepest, coldest layers of the ocean.)

3. No jellyfish can perform photosynthesis themselves but Cassiopea, the upside down jellyfish, grow algae inside them that do. All jellyfish are predators; they catch and eat whatever floats past them. So does the upside down jelly in addition to the photosynthesis.

4. They digest what they catch. See (3)

5. Besides ATP? Dunno.

6. I have no idea what you can get away with doing. It's your project.

7. Having a parasite inside the body cells is usually a disease. The symbiotic algae inside the upside down jellyfish are one of few exceptions.

8. I find them fascinating and some of them very beautiful. And yes, I've been stung by both a moon jellyfish (mild burn) and a lion's mane jellyfish (hurts more but not dangerous).

-not a marine biologist

jelly fish dont hav any special organs for homeostasis but they maintain it by simple diffusion of water across the body membranes so as to maintian the concentration of the parenchyma.they use respiration as their major energy source.as they as animals they donot hav the ability to photosynthesize.for storage which occurs rarely,they are stored in the parenchmya.the energy is derived from the oxidation of the food wich occurs individually in all the cells.

the stinge cells in jelly fish are called the cnidoblasts,they help in capturing the prey.

i hav no idea bout the evolution of jelly fish thou but i knoe dat they are very sensitive creatures.a mere fluctuatuion of 2 degrees in temperature can cause a lot of harm to there survival.

well ive never been stung by them,but i luv them.they are wonderful creatures wid very vibrant colours.