[Scenario 1] Recent studies show that recent studies show that the following text is from a scientific article about marine biology.

Dinoflagellates are single-celled organisms common in marine environments. Some species, such as Noctiluca scintillans, are capable of bioluminescence, producing bright flashes of blue light when disturbed by waves or predators. This light is produced by a chemical reaction involving a molecule called luciferin and an enzyme called luciferase. While visually stunning to humans, this bioluminescence serves a defensive purpose: the sudden flash startles predators, allowing the plankton to escape, or it acts as a "burglar alarm," illuminating the predator and making it visible to its own predators.