Abiotic Factor - A nonliving aspect of an environment, Biotic Factor - A living thing in an environment, or its waste or remains., Carbon Cycle - The continuous transfer of carbon between organisms and the nonliving parts of the environment., Cellular Respiration - The process of breaking down food to produce energy in an organism, Community - All the different populations that live together in an area, Ecosystem - All the living (biotic) and non-living (abiotic) things that interact in an area, Energy pyramid - A diagram that shows the amount of energy available at each trophic level in an ecosystem, Natural Selection - the process by which organisms with traits that are most favorable in their environment are most likely to survive and pass on their traits to offspring., Nitrogen Cycle - The continuous circulation of nitrogen among organisms and the environment., Photosynthesis - The process of making sugars from carbon dioxide, water, and sunlight., Producer - An organism that captures energy from a primary source and converts it to chemical energy., Climax community - The last stage in succession where an ecosystem reaches a stable state, Ecological Succession - A gradual process of change and replacement in a community (Two types:Primary & Secondary), Eutrophication - Excessive plant and algal growth due to an increase in the amount of nutrients, such as nitrates, in a marine or aquatic ecosystem., Permafrost - The permanently frozen soil or subsoil in arctic regions., Pioneer Species - Those species which initiate the development of an ecological community in an area with currently no life form’s in existence. Ex. Lichen, Primary Succession - A type of ecological succession that occurs where soil does not or has not existed., Secondary Succession - A type of ecological succession that occurs in areas where the ecosystem has be partially or totally destroyed (ex: forest fires, forest clearings), Tropical Rainforest - A forest or jungle near the equator that is characterized by large amounts of rain and little variation in temperature throughout the year; contains the greatest known diversity of organisms on Earth., Tundra - A treeless plain that is located in the Arctic or Antarctic and that is characterized by very low winter temperatures; short cool summers, and has permafrost.,

BIOMES

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