• EcologyPrinciples of Ecology Ecology 
    Ch 13 Resources         Bio textbook Online

    13.1 Learning Objective:
    Summarize the level of organization that ecologists study.

    13.1 Section Quiz

    13.2 Learning Objective:
    Identify biotic and abiotic factors in an ecosystem.
    13.2 Section Quiz
     
    13.3 Objective
    Describe the role of producers and consumers in an ecosystem.
    Compare and contrast photosynthesis and chemosynthesis.
    13.4 Objective:
    Analyze feeding relationships in a food web.
    Explain how food chains and tropic levels are related.
      
    13.5 Objective:
    Sumarize Earth's hydrologic cycle and biogeochemical cycles.
    Relate cycling of matter to ecosystems.
     13.6 Objective:
    Relate energy pyramids to food chains and tropic levels.
    13.6 Section Quiz
     
Last Modified on April 30, 2013