Answer:
A biotic factor is a living organism that shapes its environment. In a freshwater ecosystem, examples might include aquatic plants, fish, amphibians, and algae. Biotic and abiotic factors work together to create a unique ecosystem.
An abiotic factor is a non-living part of an ecosystem that shapes its environment. The most important abiotic factors for plants are light, carbon dioxide, water, temperature, nutrients, and salinity.
