The role of biological interactions in ecosystems is fundamental for maintaining ecological balance. These interactions include predation, competition, and symbiosis, all of which contribute to population dynamics and species distributions. Predation controls populations of certain species, competition drives adaptations, and symbiotic relationships facilitate resource exchange and coexistence. Such interactions influence energy flow, nutrient cycling, and ecosystem resilience, shaping the overall functionality of ecological communities. Understanding these interactions is key to effective conservation strategies and ecosystem management.