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.
An example of a freshwater environment is a lake, pond, a river or a stream. Microalgae grow in both saltwater and freshwater. Diatoms grow in freshwater environments especially lakes or ponds. Dinoflagellates can be found growing in saltwater environments in the sea.Red, green and brown macroalgae are found growing in saltwater.The âecosystemâ can be desribed as a community made up of living (algae, plants, animals, insects) and non-living organisms (rocks, tides, weather, nutrients, light).n example of a freshwater environment is a lake, pond, a river or a stream. Microalgae grow in both saltwater and freshwater. Diatoms grow in freshwater environments especially lakes or ponds. Dinoflagellates can be found growing in saltwater environments in the sea.