______ is a sessile animal, that relies upon its relationship with plants like algae to build the largest structures of biological origin on earth.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Coral.
- Corals are small marine animals made of thin layers of calcium carbonate.
- Coral reefs protect coastlines from storms and erosion, provide jobs for local communities, and offer opportunities for recreation.