Key Words

• Habitat

  • Environment in which an organism lives
• Population

  • total number of organisms of the same species living in the same habitat
• Community

  • populations of all of the different species that live in the same habitat
• abiotic factors

  • non - living factors in an environment
• biotic factors

  • living factors in an environment
• ecosystem

  • the interaction of a community of living organisms (biotic) with the non-living (abiotic) parts of their environment