Final answer:
Predation is the type of ecological interaction that best fits this description. Lions and hyenas rely on the same food source and removing one species from the environment would benefit the other species, indicating a predator-prey relationship.
Step-by-step explanation:
Predation is the type of ecological interaction that best fits this description. Predation is a relationship in which one species (the predator) consumes another species (the prey). In this case, lions and hyenas rely on the same food source and removing one species from the environment would benefit the other species, indicating a predator-prey relationship.