What role do symbiotic algae play in coral ecosystems?

What role do symbiotic algae play in coral ecosystems?

• A. They compete for resources with corals
• B. They reside within coral tissues and supply essential nutrients
• C. They cause diseases in coral
• D. They build the exoskeletons of corals

Answer: (B)

Symbiotic algae, specifically types known as zooxanthellae, reside within the tissues of corals and play a critical role in coral ecosystems by supplying essential nutrients. Through the process of photosynthesis, these algae convert sunlight into energy, which they then share with their coral hosts. This relationship is mutually beneficial; while the algae gain a protected environment and access to sunlight, corals receive carbohydrates and other organic compounds that are crucial for their growth and health. This dynamic is vital for the health of coral reefs, as it enables corals to thrive in nutrient-poor ocean waters. The energy produced by the algae not only supports the growth of corals but also contributes to the overall productivity of the reef ecosystem. Without this interaction, corals would struggle to survive, particularly in challenging environmental conditions.

Symbiotic algae, specifically types known as zooxanthellae, reside within the tissues of corals and play a critical role in coral ecosystems by supplying essential nutrients. Through the process of photosynthesis, these algae convert sunlight into energy, which they then share with their coral hosts. This relationship is mutually beneficial; while the algae gain a protected environment and access to sunlight, corals receive carbohydrates and other organic compounds that are crucial for their growth and health.

This dynamic is vital for the health of coral reefs, as it enables corals to thrive in nutrient-poor ocean waters. The energy produced by the algae not only supports the growth of corals but also contributes to the overall productivity of the reef ecosystem. Without this interaction, corals would struggle to survive, particularly in challenging environmental conditions.