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WARM UP

WARM UP. What does it mean when you put an “A” in front of a word? For example: *Asymmetrical *Abiotic *Atypical *Asexual. ECOSYSTEMS: Biotic & Abiotic Factors Levels of Organization. Introduction. Ecology —study of living things Way they interact with physical environment

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WARM UP

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  1. WARM UP What does it mean when you put an “A” in front of a word? For example: *Asymmetrical *Abiotic *Atypical *Asexual

  2. ECOSYSTEMS: Biotic & Abiotic FactorsLevels of Organization

  3. Introduction • Ecology—study of living things • Way they interact with physical environment • Important for determining role they play • How to best maintain for future generations

  4. Biotic—livingorganisms, plants, animals, bacteria, fungi Abiotic—nonlivingfactors of environment *air * temperature *water * altitude *rocks * light *minerals * soil Ecologists study interactionof biotic and abiotic worlds

  5. Niche – role an organism plays in its environment Resource– something needed (such as food, water and space) Adaptation – structure or behavior that increases the chance of species survival upload.wikimedia.org

  6. http://homestudy.ihea.com/wildlife/limits.gif

  7. Habitats • Where an organism lives • Smallest level of relationship ecologists study • Refers to an organism’s specificrequirements: • foodwatershelterspace www.house.gov

  8. Habitats(continued) • Food/Water requirements vary greatly • Basis of how organism derives energy • All organisms require waterto survive • Shelter—way organism protects itself from environment • Protective body parts or constructing a shelter • Space in which to live • Small to large area depending on organism

  9. Levels of Organization 1 - Biosphere– realm of living things, thin film of life on earth

  10. Levels of Organization 2 - Ecosystem – short word for ecological system - Interaction of all the organisms and abiotic factors in a given area. *Amount of sunlight a region receives *Amount of moisture in an area *Temperature of the environment *Surrounding landscape - Aquatic and terrestrial http://www.kidsgeo.com/geography-for-kids/0164-ecosystems.php

  11. Levels of Organization 3 - Community – Interaction among all of the different populations of species in a given area http://www.globalchange.umich.edu/globalchange1/current/lectures/ecol_com/ecol_com.html

  12. Levels of Organization 4 – Population – Group of the same type of organism living in the same geographic area at a given time. *Group of organisms genetically resemble each other (SPECIES) *Can reproduce with each other *Small – bacteria on a particle of soil *Large – human beings in the United States http://www.globalchange.umich.edu/globalchange1/current/lectures/ecol_com/ecol_com.html

  13. POPULATION

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