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.
Abiotic aspects. Abiotic means non-living.. The abiotic aspects of an ecosystem are its non-living chemical and physical characteristics. These factors affect the kinds of organisms that can inhabit a given ecosystem, and their abundance.biotic factors in an aquatic environment like the Hudson River include the temperature of the water, how much oxygen it contains, how acid or basic it is (pH), how fast or slowly it moves, and how much sunlight penetrates the surface.