Question

22 multiple choice 2 points which example best illustrates a biotic factor affecting a coral reef ecosystem? variations in ocean ph levels water temperature fluctuations a hurricane damaging shallow reefs the spread of a parasitic algae among coral colonies

Explanation:

Biotic factors are living components of an ecosystem. Parasitic algae is a living organism. Ocean pH levels, water temperature fluctuations, and hurricanes are abiotic (non - living) factors.

Answer:

The spread of a parasitic algae among coral colonies.