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Biotic components are the living things that shape an ecosystem. A biotic factor is any living component that affects another organism, including animals that consume the organism in question, and the living food that the organism consumes. Biotic factors include human influence.
Biotic components are contrasted to abiotic components, which are non-living components of an organism's environment, such as temperature, light, moisture, air currents, etc.
Biotic components usually include:
- Producers, i.e. autotrophs: e.g. plants; they convert the energy (from the sun, or other sources such as hydrothermal vents) into food.
- Consumers, i.e. heterotrophs: e.g. animals; they depend upon producers for food.
- Decomposers, i.e. detritivores: e.g. fungi and bacteria; they break down chemicals from producers and consumers into simpler form which can be reused.
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Answers:Biotic - living things that shape ecosystem (plants, animals): Some animals that live in the tundra are polar bears and arctic foxes. Abiotic - nonliving things that shape ecosystems: strong winds, permafrost, short summer days, long winter periods (long cold climates), poor soil, etc.
Answers:abiotic: Ice, temperature, rocks biotic: evergreens, hares, polar bears
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