Question

As the corals grow, they form a Response areaaround the island. As the island sinks underwater due to the weight of the coral and rock, the coral Response area . Eventually, a wide band of water called a Response area forms between the reef and the island. The fringing reef has become a Response area . Any corals that rise above the ocean’s surface Response area , and their skeletons form sand and rocks mixed with coral and algae. Now a coral Response area surrounds the central lagoon, changing into an Response area . New coral reefs forming inside the lagoon are called Response area .

Answer 1

It looks like you're discussing the formation of coral reefs and their surrounding areas as an island sinks. Here is a comprehensive way to fill in the blanks with appropriate terms related to coral reef ecosystems:

As the corals grow, they form a **fringing reef** around the island. As the island sinks underwater due to the weight of the coral and rock, the coral **reef** area expands. Eventually, a wide band of water called a **lagoon** forms between the reef and the island. The fringing reef has become a **barrier reef**. Any corals that rise above the ocean’s surface **form cays**, and their skeletons create sand and rocks mixed with coral and algae. Now a coral **reef** surrounds the central lagoon, changing into an **atoll**. New coral reefs forming inside the lagoon are called **patch reefs**.

This terminology reflects the stages in coral reef development and the transition of habitats as geological and ecological processes occur.