Ocean Life

What’s inside

• Which adaptation most directly helps a bony fish maintain buoyancy without constant swimming?
• Match each ocean organism with its main ecological role.
• Arrange these levels of a marine food chain from the original energy source to a higher-level predator.
• Why are coral reefs especially vulnerable to prolonged ocean warming?
• Match each marine animal with its most characteristic adaptation.
• Arrange the stages of coral bleaching in the most logical sequence.
• Which process is the main source of oxygen production in the sunlit ocean?
• Match each ocean zone with its defining environmental condition.