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Biology Unit 2 Terms

Terms for Biology

TermDefinition
Abiotic Factors The nonliving parts of an organism's environment.
Biological Community A population of organisms living amongst each other.
Biosphere The portion of the earth that supports living things.
Biotic Factor A living things that are in a certain environment.
Commensalism When one organism benefits and the other isn't affected.
Ecology The study of the relationships of organisms.
Ecosystem A group of organisms acting with other organisms and their surroundings.
Habitat The natural home/environment for an organism.
Mutualism When organisms benefit from each other.
Niche When an organism has a role in an ecosystem.
Parasitism When one organism gets a benefit when the other is harmed.
Population A community of organisms.
Symbiosis Interaction between two organisms.
Autotroph An organism that can produce its own energy.
Biomass The total mass of organisms in an area.
Decomposer An organism that feeds off of a dead organism.
Food Chain A system of organisms who depend on each other for energy.
Food Web A system of food chains interlocked with each other.
Heterotroph Organisms that depend on other organisms for energy through feeding.
Trophic Level The level of consumer or producer an organism is on a food chain.
Climax Community A stable, mature community that undergoes little or no change in species
Limiting Factor Anything that restricts the life of an organism.
Primary Succesion When barren land is colonized by communities of organisms.
Secondary Succesion When a community of organisms is severely disrupted
Succesion When a community of organisms successively gives way.
Tolerance An organisms ability to withstand the environment.
Created by: superman429
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