Mutualism - a type of symbiotic relationship where all species involved benefit from their interactions.
Example of mutualism:
Commensalism - a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter.
Example of commensalism:
Competition - is typically considered the interaction of individuals that vie for a common resource.
Example of competition:
Predation - one organism kills and consumes another.
Example of predation: