Ecology and Environmental Science

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Carrying capacity/ecology definition

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The number of people, organisms, or crops that a region can support without the environment breaking down

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Limiting factors

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A resource or environmental condition which limits the growth, distribution and amount of organism or populations within an ecosystem.

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Examples of resources as limiting factors

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Food, water, space, shelter, and access to mates.

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Source of energy for organisms

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The sun.

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How do organisms get energy?

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By consuming other organisms or through photosynthesis (taking in glucose from plants).

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Biotic factors

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Living factors such as soil bacteria, plant life, top predators, and polluters.

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Role of biotic factors

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Defined role in the flow of energy ( all living things in the ecosystem need to survive.)

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Abiotic factors

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Non-living factors such as temperature, air or water currents, sunlight, soil type, rainfall, or available nutrients.

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Dependence on abiotic factors

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Organisms depend on abiotic factors for survival.

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Level of organization: Individual

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An individual living thing (e.g., striped fish).