Symbiotic Interactions Imperial shrimp attach themselves to sea cucumbers and get transported by their host to a large area of potential food with only a minimal expenditure of energy. They have been observed getting off their host cucumber to feed in productive areas and then getting back on for a ride to the next spot.

competition—when two or more organisms rely on the same environmental resource
predation—the behavior of one animal feeding on another
symbiosis—the close relationship of two dissimilar organisms
mutualism—a symbiotic relationship where both organisms benefit
commensalism—a symbiotic relationship where one organism benefits and one does not benefit but is unharmed

Why?