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 factors are all of the non-living things in an environment. All biotic factors in an environment are dependent upon the abiotic factors in an environment. Some examples of biotic factors in the tropical rainforest are toucans, frogs, snakes, and lizards.Abiotic factors in the tropical rainforest include humidity, soil composition, temperature, and sunlight.very environment contains what are called 'biotic' and 'abiotic' factors. In this lesson you will learn the definition and importance of abiotic factors. You will also view some examples of abiotic factors that are present in the tropical rainforest.