symbiotic relationship in which one organism lives on or inside another organism, the host, causing it some harm

symbiotic relationship in which one species obtains food /benefits from the other without harming or benefiting the other species

symbiotic relationship between two or more species where each species benefit from one another

symbiotic relationship in which one organism, the predator, kills and eats another organism, its prey.

a close and long-term biological interaction between two different biological organisms

place where an organism or a community of organisms live, including all living and nonliving factors or conditions of the surrounding environment

includes the environment that a given organism lives in, but it also includes the organism's "job" in that environment.