Re-order Paragraphs

Put the sentences in the correct order:

1. ▲▼If the heat persists and the algae do not return, the starved corals eventually die, and the reef collapses.
2. ▲▼When the surrounding water grows too warm, however, the stressed corals expel these algae and turn ghostly white.
3. ▲▼The algae supply the corals with food through photosynthesis, while the corals offer them shelter and nutrients.
4. ▲▼This abundance depends on a partnership between the corals and tiny algae that live inside their tissues.
5. ▲▼Coral reefs cover less than one percent of the ocean floor, yet they shelter roughly a quarter of all marine species.