Ecology Terms
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| dichotomous key | a classification system to categorize and compare organisms
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| ecology | branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
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| population | A population is a group of individuals of the same species inhabiting the same area.
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| community | interacting species living in the same place.
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| ecosystem | a biological community of interacting organisms and their physical environment.
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| biotic factors | Living things: Ex.'s Plants, Animals, Fungi, Bacteria, Fish, Alga, Seaweed
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| abiotic factors | Non Living things: Ex.'s Waterways, Soil, Sun, Wind, Rain, Temperature
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| Symbiosis Relationship | close relationship between two species in which at least one species benefits.
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| Mutualism | a relationship between two organisms of different species "work together," each benefiting from the relationship.
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| Commensualism | a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter.
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| Parasitism | a symbiotic relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.
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| Autotroph | Producers - Make their own food. Ex . Plants, Lichen, Algae
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| Heterotroph | Consumers- Must obtain/eat Food to get Energy
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| Primary Consumers | Organisms that Eat Producers
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| Secondary Consumers | Organisms that Eat Primary Consumers. Usually are Carnivores.
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| Decomposers | Organism that decomposes Organic Material. Ex. Fungus, Mushroom, Bacteria
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| Scavengers | An animal that feeds on dead plant material. Ex. Vultures, Coyotes
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| Arrows in a Food Chain/Web | Shows Transfer of Energy
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| Energy Pyramids | Shows how energy flows - 10% Rule - Each trophic Level Loses 10 % of Energy as it goes up - ENERGY IS NOT RECYCLED
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| Biomass Pyramid | Shows living mass in each trophic level
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| Ecological Pyramid | Shows the Relationship between different organisms
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