Coral reefs support marine life in various ways. They provide shelter and protection for numerous species of fish, invertebrates, and other marine organisms. Coral reefs also serve as feeding grounds for many marine creatures, contributing to the intricate food web in the ocean. Additionally, coral reefs help maintain biodiversity by offering a diverse range of habitats for different species to thrive. The structures of coral reefs also play a vital role in nutrient cycling and the overall health of the marine ecosystem.