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.
All the living organisms are called biotic factors. Compare and give several examples of biotic and abiotic factors in a forest ecosystem. Answers:Biotic=Grass, Trees, Squirrels, Mice, Flowers, Moss, Bears, Rabbits, Deer, Moose, Mushrooms etc. Abiotic=Water, Air, Soil, Rocks, Light, Temperature, Energy, etc.