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GRE
GRE Verbal Reasoning Section

Importance of Coral Reefs in Marine Ecosystems

Easy Reading Comprehension Passage-based Questions

The study of marine ecosystems reveals the complex interdependencies among various species. For instance, coral reefs are home to a multitude of organisms, from tiny plankton to large fish. These ecosystems not only provide shelter and food but also serve as critical nursery habitats for many marine species. However, environmental threats like climate change and pollution jeopardize the health of coral reefs. Increased water temperatures lead to coral bleaching, where corals expel the algae living in their tissues, depriving them of their color and vital nutrients. Protecting these ecosystems is crucial, as they support biodiversity and play a significant role in coastal protection.

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