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.
Feeding Starfish or sea stars are carnivores that eat clams, mussels, oysters, arthropods, sea urchins and even small fish. Some species also eat some sponges, bryozoans, coral polyps. Sea stars have two separate stomachs: the cardiac stomach and the pyloric stomach.