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Complete the Words Test #199
Fill in the missing letters in a paragraph
Coral reefs are large underwater structures composed of the skeletons of tiny marine animals called coral polyps.
referred to
the "
of the sea,"
are among
most diverse ecosystems on Earth.
provide a home for
of
of fish,
, and
marine life. These reefs also protect coastlines from storms and erosion by absorbing wave energy. The vibrant colors of coral reefs come from microscopic algae that live in a symbiotic relationship with the coral.
- 1. Often
- 2. as
- 3. rainforests
- 4. they
- 5. the
- 6. They
- 7. thousands
- 8. species
- 9. invertebrates
- 10. other
Highlights
| ID: | #io4443193896 |
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New TOEFL