Coral reefs support marine life in various ways. Firstly, they provide shelter and protection for a wide variety of marine species, including fish, invertebrates, and algae. Coral reefs also serve as breeding and nursery grounds for many marine organisms, helping to sustain populations and biodiversity in the oceans. Additionally, coral reefs contribute to the food chain by providing food sources for many marine animals. The structure of coral reefs also helps to improve water quality by filtering out sediments and pollutants. Overall, coral reefs are incredibly important ecosystems that support a rich and diverse array of marine life.