Best Results From Yahoo Answers
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Answers:In a forest, abiotic factors include the non-living factors of lighting, water flow (rivers,lakes), amount of shelter (caves, roosts), and temperature. Biotic factors include the living factors of other animals (prey and predator), parasites, competition between members of the same species, and relations between different species (symbiotic, mutualistic).
Answers:Biotic=Grass, Trees, Squirrels, Mice, Flowers, Moss, Bears, Rabbits, Deer, Moose, Mushrooms etc. Abiotic=Water, Air, Soil, Rocks, Light, Temperature, Energy, etc.
Answers:They don't. The organisms, competing for resources, determine the balance.
Answers:You've got to be a little careful with the definition the person before me gave - they said biotic = living and abiotic = dead. Not quite true. Under this definition a dead animal would be abiotic, but this isn't true. Abiotic is something that never has been and never will be alive, so a rock, for example. In a lake ecosystem: -biotic: fish -abiotic: rocks forest ecosystem: -biotic: trees and animals -abitoic: once again, rocks... Hope this helped you some...