Question

There was a large-scale growth event of coral reefs millions of years ago due to which of the following? (1 point) Responses The evolution of new species of fish. The evolution of new species of fish. The effect of tsunamis on marine life. The effect of tsunamis on marine life. The relationship between corals and zooxanthellae. The relationship between corals and zooxanthellae. The extinction of some species of algae.

Answer 1

The large-scale growth event of coral reefs millions of years ago is most closely associated with **the relationship between corals and zooxanthellae**. This symbiotic relationship allows corals to efficiently utilize sunlight for energy through photosynthesis, which contributed significantly to their proliferation and the formation of extensive reef systems.