what is a biotic factor in a coral reef ecosystem? A)dissolved oxygen in water B)lion fish C)level of the tide D)level of salinity

Biology · Middle School · Wed Jan 13 2021

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Correct answer is b. 

Lion and fish because it is living. 

Biotic factors include plants, animals, and microbes; important abiotic factors include the amount of sunlight in the ecosystem, the amount of oxygen and nutrients dissolved in the water, proximity to land, depth, and temperature.