Biology Unit 8 - Ecology

Unit 8 – Ecology



Describe ecological levels of organization in the biosphere.


  • Describe the levels of ecological organization (i.e., organism, population, community,ecosystem, biome, and biosphere)


  • Describe characteristic biotic and abiotic components of aquatic and terrestrialecosystems.


Describe interactions and relationships in an ecosystem.


  • Describe how energy flows through an ecosystem (e.g., food chains, food webs, energypyramids).


  • Describe biotic interactions in an ecosystem (e.g., competition, predation, symbiosis).


  • Describe how matter recycles through an ecosystem (i.e., water cycle, carbon cycle, oxygencycle, and nitrogen cycle).


  • Describe how ecosystems change in response to natural and human disturbances (e.g., climatechange, introduction of nonnative species, pollution, fires).


  • Describe the effects of limiting factors on population dynamics and potential speciesextinction.



Worksheet for videos below.