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Biosphere Part of Earth where life exists
Ecosystem Made up of a community of organisms
Community Consists of all of the populations of species that live and interact in the ecosystem
Population Group of species that live together
Organism Individual living thing
Producers Make their own food using energy from the sun
Cosumers Cannot make their own food, and need to eat plants and other animals for energy
Decomposers Eat decaying matter (dead plants and animals). Break matter down and release nutrients and minerals back into the soil
Herbivore Eats only plants
Carnivore Eats only meat
Omnivore Eats both plants and meat
Scavenger Eats dead plants and animals
Food chain Shows how each living thing gets food
Food chains always begin with a... producer
Food web Collection of food chains interconnected
Energy pyramid Shows the amount of energy available at each trophic level of an ecosystem
Limiting Factor Resource that is so scarce that it limits the size of a population
Carrying capacity Largest population that an environment can support
Competition When two or more organisms try to use the same resources
Prey Organism that is killed and eaten by another
Predator Organism that eats all or part of another
Symbiosis Relationship in which two different organisms live in close association with each other
Mutualism Benefit from
Commensalism Unaffected by
Parasitism Harmed by
Water Cycle Process by which water moves through the Earth and atmosphere
Evaporation Process that occurs when water changes from a liquid to a gas
Condensation Cooling of water in the atmosphere, changing a gas to a liquid
Precipitataion Water droplets fall from the atmosphere in the form of rain, sleet, snow, or hail
Transpiration Passage of water vapor form a plant to the atmosphere
Runoff Rainfall that is not absorbed by soil and travels to the ocean
Carbon Cycle Exchange of carbon between the environment and living things
Decomposition Breakdown of substances into simpler molecules
Combustion Burning of a substance
Nitrogen Cycle Movement of nitrogen between the environment and living things
Nitrogen Fixation Bacteria in the soil and lightning are able to change nitrogen gas into forms that plants can use
Created by: ndmsteach