Name: -J Cool
How in the world do jellyfish stay alive without any kind of brain,
stomach, or any other important organs necessary for multicellular organisms?
P.S. How do jellyfishes' stinger work? How does panty hose prevent
Jellyfish have a nervous system, although not what we would call a brain.
It is enough to allow them to swim, and to react to stimuli that might be dangerous.
They also do have a digestive cavity that could be called a stomach. They can take
food into it and digest it with enzymes to a limited extent.
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Update: June 2012