Vocabulary Words & Definitions
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Ecology | Study of interactions of living organisms with one another and their environment.
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Biotic | Describes the living factors in the environment.
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Abiotic | Describes the nonliving part of the environment.
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5 Levels of Environmental Organization | Organism, population, community, ecosystem, biosphere.
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Organism | A living thing.
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Population | A group of organisms of the same species that live in a specific geographical area.
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Community | All the populations of species that live in the same habitat interact with each other.
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Ecosystem | A community of of organisms and their abiotic enviorment.
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Biosphere | Part of Earth where life exists.
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Producer | An organism that makes its own food from its surroundings.
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Consumer | An organism that eats other organisms or organic matter.
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Herbivore | An organism that eats plants.
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Carnivore | An organism that eats animals.
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Omnivore | An organism that eats both plants and animals.
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Scavenger | An omnivore that eats dead plants and animals.
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Decomposer | An organism that gets energy by breaking down the remains of dead organisms, organic wastes, and consuming or absorbing the nutrients.
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Food Web | A diagram that shows the feeding relationships between organisms in a web.
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Food Chain | Pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms
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Limiting Factor | A resource so scarce, it limits the population size.
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Carrying Capacity | The largest population that an environment can support at any given time.
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Predator | An organism that kills and eats other organisms.
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Prey | An organism that is killed and eaten by other organisms.
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Predator Adaptations | Adaptations that help catch prey.
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Prey Adaptations | Adaptations that help avoid predators.
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Symbiosis | The organisms that live in close association with each other.
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Mutalism | A relationship where both organisms benefit.
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Commensalim | A relationship between two organisms in which one organism benefits, while the other is unaffected.
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Parasitism | A relationship there the parasite benefits, and the host is harmed.
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