Autoimmune Disease Genetics. 1  1Division of Rheumatology and Department of Immunology, Mayo Clinic, 200 1st Street SW, Guggenheim Building 3-42, Rochester, MN 55905, USA. 2  2Laboratory of Molecular Medicine and Human Genetics, Department of Medicine, University of Crete, Heraklion, Greece.
Sunlight, soil, water, and pollution, for example, are all important abiotic factors of an environment that affect life. The biotic environment, on the other hand, is composed of all the living organisms in an ecosystem, and includes factors such as disease, predators, prey, and human activity.
For all abiotic aspects of the environment, changing conditions require organisms to adapt or else suffer death. For example, a drought, flood, volcanic eruption, or earthquake drastically alters factors such as weather, water conditions, or even available elements and nutrients in the soil.iving organisms, such as tree leaves, can become a part of the abiotic environment once they die and have their nutrients absorbed back into the soil. Soil is part of an abiotic environment. A drought can alter the level of nutrients in soil.