Answer:
True
Step-by-step explanation:
Sea anemones are one of the numerous predating animals found in the marine environment. They have cylindrical bodies whose bases are usually found attached to substrates and are therefore described as being sessile. However, a few species of sea anemones are known to be free swimmers.
Generally, sessile organisms are those that live their life attached to a substrate and, therefore, are not able to freely move about.