Marine zones are distinct areas of the ocean that are categorized based on depth, light availability, and distance from shore. These zones include the intertidal zone, where the ocean meets the land, and the pelagic zone, which is the open ocean. Each zone supports different types of marine life, adapted to the specific conditions found there. The ocean is also divided into vertical zones, such as the photic zone, where sunlight penetrates, and the aphotic zone, which is dark and cold. These zones influence the distribution of organisms, from plankton in the photic zone to deep-sea creatures in the aphotic zone.