What term is used for fish, invertebrates, and other organisms that inhabit water?

The term "aquatic life" encompasses all organisms that inhabit water, including fish, invertebrates, plants, and other organisms found in freshwater and marine environments. This broad category is applicable to any life forms that have adapted to live in aquatic ecosystems, recognizing the diversity of these organisms regardless of whether they are in oceans, lakes, rivers, or wetlands.

Marine life specifically refers to organisms that live in oceanic environments, which would not include freshwater species. Freshwater life would pertain only to organisms found in freshwater environments, while terrestrial life signifies organisms that live on land. Therefore, aquatic life is the most inclusive term, capturing all organisms that thrive in water, making it the correct choice for the question posed.