Sea Turtle is one of the predator of Jellyfish, humans in certain country do so too but not all.
No yes
jellyfishes eat plankton fish and even feed on other jellyfishes
No They eat boys like you.
jellyfish do not eat human food.
Yes; jellyfishes can eat starfishes plutei (larvae).
bigger animals are the jellyfishes enemies.
Jellyfishes are carnivores.Most jellyfishes are drifters that feed on living or dead preys: small fish, eggs, zooplankton and other invertebrates that become caught in their tentacles.Polypodium hydriforme is a parasite of fishes' eggs.
Green Sea Turtles because green sea turtles eat jellyfish.
The water itself is supporting the jellyfish itself and assists in movement. You might notice that jellyfish fall flat and die when on land. If your asking what they eat, its usually small/dead plants that are floating around.
Organisms that eat other organisms for energy are hetreotrophs.
35 people die by jellyfishes every year.
Yes, they are.