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Assessment
What is a primary reason coral reefs are important to marine ecosystems?
They provide shelter and habitat for many marine species.
They are the only source of fresh water in the ocean.
They are the fastest-growing plant species.
They are responsible for creating ocean currents.
Which of the following is primarily threatening coral reefs globally?
Overfishing.
Coral bleaching from temperature rise.
Increased biodiversity.
Natural disasters such as earthquakes.
What is the relationship between coral polyps and algae called?
Symbiosis.
Parasitism.
Competition.
Predation.
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