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.
Biotic and Abiotic Factors. Biotic: Biotic factors are any living things in an envirnment. The tropical rainforest is full of life with apoximately 15 million different species of animals. A few examples of the many biotic feature are the rubber and bamboo trees, sloths, anteaters, poison dart frogs, lemurs, bromeliads, etc. Abiotic: