Coral Reefs Exit ticket

What is the primary factor responsible for the formation of coral reefs?

• Accumulation of calcium carbonate

• Action of wind erosion

• Erosion of volcanic rocks

• Deposition of iron oxide

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Why are coral reefs important to the marine ecosystem?

• Coral reefs provide habitat for a wide variety of marine life, protect coastlines from erosion, and support local economies through tourism and fisheries.

• Coral reefs have no impact on the marine ecosystem

• Coral reefs are harmful to the marine ecosystem

• Coral reefs only provide habitat for a few marine species

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What are some of the major threats to coral reefs?

• Lack of sunlight and nutrients

• Climate change, ocean acidification, overfishing, pollution, and destructive fishing practices

• Deforestation and land development

• Excessive coral reef tourism

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How do coral reefs provide a habitat for various marine species?

• By emitting toxic substances that repel predators

• By offering shelter, food, and breeding grounds.

• By producing loud noises that attract marine species

• By creating an environment with extreme temperatures that only certain species can survive in

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NGSS.MS-LS2-4

Explain the concept of coral bleaching and its impact on coral reefs.

• Coral bleaching is the expulsion of algae from coral tissues, turning them white, and it can lead to the death of corals and loss of marine biodiversity.

• Coral bleaching has no impact on coral reefs and does not affect marine biodiversity.

• Coral bleaching is the process of adding color to coral tissues, making them more vibrant and healthy.

• Coral bleaching is caused by an increase in algae in coral tissues, making them more colorful and diverse.

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NGSS.MS-LS2-4

Describe the symbiotic relationship between corals and zooxanthellae.

• The zooxanthellae provide energy through photosynthesis, and the corals provide a protected environment and nutrients.

• The corals provide energy through photosynthesis, and the zooxanthellae provide a protected environment and nutrients.

• The relationship is purely competitive, with each organism trying to outcompete the other for resources.

• The corals and zooxanthellae have no interaction and simply coexist in the same environment without any benefit to each other.

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How do human activities contribute to the degradation of coral reefs?

• Overfishing, pollution, and coastal development

• Building more artificial reefs

• Reducing carbon emissions

• Planting more trees

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