Sea life is a term used to describe the diverse range of aquatic organisms that inhabit the world's oceans, seas, and other bodies of water. Two examples of sea life are ALGAE and CORAL. ALGAE are a type of simple plant-like organism that can be found in both saltwater and freshwater environments. CORAL is an invertebrate animal that forms large colonies and builds reefs in shallow, warm waters. Both ALGAE and CORAL are essential components of marine ecosystems, providing food and shelter for many species of fish and other sea creatures.