Principles of ecology.This chapter has a lot of definition need to be know.
Abiotic factor are non living part of enviroments such as

  • temperature
  • water
  • sunlight
  • wind
  • rocks and soil
  • periodic disturbances
    https://classconnection.s3.amazonaws.com/665/flashcards/2470665/png/abiotic_factor1362439889644.png
Homeostasis is dynamic balance of processes,materials and organisms in the ecosytem and biosphere

Microbes also have roles in the ecosystems

  • oxygen producer. Half of oxygen produce by blue-green algae in the ocean.I wonder how this algae can produce oxygen?Does it has same process as in tree?
  • fix nitrogen in the atmosphere into usable form
  • recyclers of dead materials
  • source in food chain
  • contribution to evolution:remove weaker species through infections
What I have learn:
-Ecology is the systematci study of organisms and their interactions with enviroment
-Example of decomposer is fungi
-blue-green algae produce oxygen

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