What is torism?
How do echinodermata digest larger prey out side their body?
To answer your first question, "torism" appears to be a misspelling or a typographical error. Perhaps you meant "tourism"? Tourism refers to the activity of individuals or groups traveling to destinations outside their usual environment for leisure, recreation, business, or other purposes.
Regarding your second question, echinoderms, a group of marine animals including starfish, sea urchins, and sea cucumbers, have a unique way of digesting larger prey outside their body. They utilize a specialized structure called a "stomach" or "cardiac stomach" to accomplish this.
Here's how it works: When an echinoderm finds a larger prey item, it extends its stomach out of its mouth, through the mouth cavity, and into contact with the prey. The stomach then releases digestive enzymes onto the prey, breaking down its tissues into smaller molecules. These smaller molecules are then absorbed by the stomach, allowing the echinoderm to extract nutrients from the prey. Once digestion is complete, the stomach is retracted back into the body.
To witness this process, you can search for videos or documentaries about echinoderm feeding behavior, or explore educational resources and scientific literature that describe their digestive mechanisms. Keep in mind that observing this phenomenon in person might require diving or visiting specialized aquariums with echinoderm exhibits.