How can symbiosis be defined in ecological terms?

Symbiosis can be defined in ecological terms as a close ecological relationship between different species. This relationship can take various forms, including mutualism, commensalism, and parasitism, where at least one species benefits from the interaction. The key aspect of symbiosis is the proximity and interaction between the species involved, which distinguishes it from more casual or distant associations. This close relationship can significantly impact the survival, reproduction, and behavior of the species involved, often leading to adaptations that facilitate or enhance the interaction.

Understanding the nuances of symbiotic relationships is crucial in ecology, as they demonstrate the interconnectedness of species within ecosystems and how these relationships contribute to ecological balance and biodiversity.