What is ecology? Ecology is the study of organisms and the environment they live in. The things scientists look at the most are diversity, distribution, amount , number or population of organisms, as well as competition between them in the different ecosystems. Biotic Abiotic What kinds of features What kinds of features does biotic have? does abiotic have? Biotic is anything living in Abiotic is anything not the environment. Like living in the environment. animals or plants. Like sun or water. Abiotic features affect the environment in positive and negative ways. Mostly negative such as a factory that lets out carbon dioxide into the air. However some can be positive too such as the sun helping a plant to grow, or watering a plant.