Ecology
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2. Ecology - PowerPoint PPT Presentation


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Ecology The study of the interactions that take place among organisms and their environment Biosphere The part of Earth that supports life Top portion of Earth's crust All the waters that cover Earth's surface Atmosphere that surrounds Earth. Ecosystem

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Biosphere l.jpg
Biosphere organisms and their environment

  • The part of Earth that supports life

    • Top portion of Earth's crust

    • All the waters that cover Earth's surface

    • Atmosphere that surrounds Earth.


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Ecosystem organisms and their environment

  • All the organisms living in an area and the nonliving features of their environment


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Population organisms and their environment

  • All the organisms in an ecosystem that belong to the same species


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Community organisms and their environment

  • All the populations in an ecosystem


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Habitat organisms and their environment

  • The place in which an organism lives

    • provides the kinds of food and shelter, the temperature, and the amount of moisture the organism needs to survive


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Competition organisms and their environment

  • Food

  • Space


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Competition organisms and their environment

  • Competition caused by population growth affects many organisms, including humans

  • Limits population size


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Limiting Factor organisms and their environment

  • Anything that restricts the number of individuals in a population.

  • Includes living and nonliving features of the ecosystem


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Succession organisms and their environment

  • Natural, gradual changes in the types of species that live in an area; can be primary or secondary.

    • Primary – begins in a place without soil

    • Secondary – where soil already exists


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Primary Succession organisms and their environment


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Secondary Succession organisms and their environment


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Pioneer species organisms and their environment

  • A group of organisms, such as lichens, found in the primary stage of succession and that begin an area's soil-building process


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Climax community organisms and their environment

  • A community that has reached a stable stage of ecological succession


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Biome organisms and their environment

  • Large geographic areas with similar climates and ecosystems


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Includes organisms and their environment

  • Tundra

  • Taiga

  • Desert

  • Temperate deciduous forest

  • Temperate rain forest

  • Tropical rain forest, and grassland


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This powerpoint was kindly donated to organisms and their environment www.worldofteaching.com

http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.


Slide30 l.jpg

This powerpoint was kindly donated to organisms and their environment www.worldofteaching.com

http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.


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