6.3.1 Definitions

• Ecosystem


  • all the organisms living in a certain area, and all the non-living conditions
  • ecosystems are dynamic - always changing
• Habitat


  the place where the organism lives
• population


  all the organisms of one species in a habitat
• producer


  organisms that produces organic molecules using sunlight energy
• consumer


  organism that eats other organisms
• decomposer


  organism that breaks down dead or undigested organic material