Question

9 multiple choice 1 point one major biotic factor that affects the health of coral reefs is/are... water pollution symbiotic algae hurricanes extreme temperature

Explanation:

Biotic factors are living components. Symbiotic algae (zooxanthellae) live within coral polyps and provide them with energy through photosynthesis. Their health and presence are crucial for coral reef health. Water pollution, hurricanes, and extreme temperature are abiotic factors.

Answer:

B. Symbiotic algae