All of these reasons are why it is so difficult to claim that chemical imbalances are the actual cause of anxiety, and not simply a symptom. Even if they are a cause, it appears that the ability to cope with anxiety can address some or all of the chemical problems.
The larger species of jellyfish eat crustaceans and other jellyfish. The tentacles are the main devices to catch prey for jellyfish. These tentacles have thousands of cnidocytes with stinging capsules or nematocysts containing venom.
Other species of jellyfish are among the most common and important  jellyfish predators, some of which specialize in jellies. Other  predators include tuna, shark, swordfish â¦ , sea turtles, and at least  one species of Pacific salmon.