CORAL BLEACHING

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What is coral bleaching?

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Coral bleaching is a phenomenon where corals lose their vibrant colors due to stress factors, primarily caused by elevated water temperatures, leading to the expulsion of symbiotic algae (zooxanthellae).

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What are zooxanthellae?

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Zooxanthellae are symbiotic algae that live within coral tissues and provide essential nutrients, such as sugars, to corals through photosynthesis.

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What is the primary cause of coral bleaching?

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The primary cause of coral bleaching is warmer water temperatures, which can result from climate change and other environmental stressors.

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What role do coral skeletons play in reef formation?

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Coral skeletons accumulate over time to form the structure of coral reefs, providing habitat for various marine species.

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What is a producer in a marine food web?

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A producer is an organism that can make its own food through photosynthesis, such as turtle grass in a marine ecosystem.

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How do corals benefit from their symbiotic relationship with zooxanthellae?

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Corals benefit from zooxanthellae by receiving sugars produced through photosynthesis, which serve as a vital energy source.

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What happens to corals during coral bleaching?

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During coral bleaching, corals expel their zooxanthellae due to stress, leading to a loss of color and essential nutrients.

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What are some effects of coral bleaching on marine ecosystems?

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Coral bleaching can lead to reduced biodiversity, loss of habitat for marine species, and disruption of the food web.

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What environmental factors can lead to coral bleaching?

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Environmental factors leading to coral bleaching include increased water temperatures, pollution, and changes in salinity.

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What is the significance of coral reefs?

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Coral reefs are vital ecosystems that support a diverse range of marine life, protect coastlines, and provide resources for human communities.