Polyp
Polyp explained in an easy to understand way:
Imagine setting up a camping tent that you need to anchor securely to the ground so it withstands the wind. Just like that tent, a polyp is an organism that attaches itself firmly to a surface in its environment. In this analogy, the anchored tent represents the polyp's tube-shaped body attached to a rock or seabed, providing stability in its aquatic surroundings, much like how the tent remains stable in the wind.
Practice Version
Polyp: A tube-shaped organism usually attached to a surface, it is a life stage of a cnidarian. Polyp. A polyp is a small, sessile life stage of some marine animals like jellyfish and corals, often resembling a small tube with tentacles.