Organisms that remain attached to one place during their lifetime are called sessile organisms.

Here are some examples of sessile organisms:

* Plants: Most plants are sessile, rooted in the ground.

* Corals: These marine animals are attached to the seafloor.

* Barnacles: These crustaceans attach themselves to rocks, ships, and other surfaces.

* Sponges: These animals are filter feeders that live attached to surfaces.

* Oysters: These mollusks live attached to rocks or other hard surfaces.

Let me know if you'd like to learn more about a specific type of sessile organism!