The ecological interaction between a sea anemone and the clown fish that lives among its stinging tentacles can be symbolically represented as:

Step-by-step solution

The interaction between a sea anemone and a clown fish is an example of commensalism. In this interaction, the clown fish gets protection from predators by hiding among the stinging tentacles of the sea anemone, so it benefits (+) . The sea anemone is neither harmed nor benefited by the presence of the clown fish, so it remains unaffected (0) . Therefore, this ecological interaction is symbolically represented as Species A (+) ; Species B (0) . Answer: Species A (+) ; Species B (0)