Sea anemones trying to occupy the same territory in a tide pool. What type of interaction, predation, competition, mutualism, parasitism, or commensalism?

Competition

Explanation:

Competition is a type of species interaction in which two different species interact with each other to harm each other

According to Gauss's theorem of competitive exclusion principle two different species cannot coexist in same environmental conditions utilizing same natural resources

In the example, Sea anemones will compete with the species occupying the same territory in a tide pool, both the species will compete for the same territory and resources where one species will win and other will loose