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Ecosystems Vocabulary. Population. A grouping of the same species in a certain area. Sampling. Using general characteristics of a small group to identify characteristics of a larger group. Abiotic and Biotic.
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Population • A grouping of the same species in a certain area
Sampling • Using general characteristics of a small group to identify characteristics of a larger group
Abiotic and Biotic • Abiotic: Nonliving things or factors that can affect living organisms – temperature, rain, oceans… • Biotic: Living organisms or factors – plants, animals
Dichotomous Key • A key used to identify a species by its traits
Trophic Level • A level at which a species feeds
Autotrophs and Heterotrophs • Autotrophs: Species that make or produce their own food – plants, algae • Heterotrophs: Organisms that feed at multiple trophic levels– animals, fungi Oh my gosh I’m a heterotroph!
Producers and Consumers • Producers: The organisms that provide energy to an ecosystem • Consumers: Organisms that consume energy from other organisms
Herbivore, Carnivore and Omnivore • Herbivores: Organisms that only eat plants • Carnivores: Organisms that only eat meat • Omnivores: Organisms that eat meats and plants
Decomposers • Organisms responsible for returning nutrients to the ecosystem – bacteria, fungi, mold
Food Chain • Display of specific energy transfers between organisms
Food Web • Shows all the possible food chains in an ecosystem
Symbiosis • Relationship between two organisms
Commensalism, Mutualism, and Parasitism • Commensalism: Form of symbiosis where one organism benefits and the other is neither benefited or harmed • Mutualism: Both organisms benefit • Parasitism: One organism benefits and the other is harmed