Ecosystems vocabulary
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Ecosystems Vocabulary - PowerPoint PPT Presentation

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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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  • A grouping of the same species in a certain area


  • Using general characteristics of a small group to identify characteristics of a larger group

Abiotic and biotic
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
Dichotomous Key

  • A key used to identify a species by its traits

Trophic level
Trophic Level

  • A level at which a species feeds

Autotrophs and heterotrophs
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 and Consumers

  • Producers: The organisms that provide energy to an ecosystem

  • Consumers: Organisms that consume energy from other organisms

Herbivore carnivore and omnivore
Herbivore, Carnivore and Omnivore

  • Herbivores: Organisms

    that only eat plants

  • Carnivores: Organisms

    that only eat meat

  • Omnivores: Organisms that eat meats and plants


  • Organisms responsible for returning nutrients to the ecosystem – bacteria, fungi, mold

Food chain
Food Chain

  • Display of specific energy transfers between organisms

Food web
Food Web

  • Shows all the possible food chains in an ecosystem


  • Relationship between two organisms

Commensalism mutualism and parasitism
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