Ecology Flashcards

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Biosphere

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The global ecological system integrating all living beings and their relationships.

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Autotroph

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An organism that produces its own food using light, water, carbon dioxide, or other chemicals.

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Population density

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The number of individuals per unit area or volume.

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Symbiosis

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A close and long-term biological interaction between two different biological organisms.

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Climate change

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A long-term change in the average weather patterns that have come to define Earth's local, regional, and global climates.

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Primary Producer

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Organisms in an ecosystem that produce biomass from inorganic compounds.

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Heterotroph

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An organism deriving its nutritional requirements from complex organic substances.

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Immigration

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The movement of individuals into a population.

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Commensalism

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A relationship between two organisms where one benefits and the other is neither helped nor harmed.

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Global warming

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The long-term heating of Earth's climate system observed since the pre-industrial period due to human activities.