How do you think the little jellyfish is alive?

Jellyfish is a translucent mollusk. If you want to determine whether it is alive or not, it depends on whether its tentacles are still moving. Jellyfish live in the middle of the sea, so if you are not sure, pour a bottle of water where it is still. If it reacts, it will still be alive. Don't touch it. Jellyfish seem to be poisonous.