Answer:
here it is , plz mark me as brainliest
Explanation:
The relative importance of food supply and predation as determinants of animal population density is a topic of enduring debate among ecologists. ... In the 148 experiments recorded, food supplementation had an overall positive and significant effect, increasing population densities by 1·5‐fold.
Biome, though some might say ecosystem instead. Biomes are very large ecosystems that cover broad areas.<span>If they specify "one" reef, then they are probably looking for "ecosystem"</span>
