Competition and Interdependence

• what is a habitat?


  the environment in which an organism lives in
• what is a population?

  a total number of organisms of the same species living in the same geographical area
• what is a community?

  the population of all the different species that live in the same habitat
• define biotic?


  living organisms
• define abiotic?


  non-living
• what is a ecosystem?

  both the biotic and abiotic parts of an environment and how they interact
• things plants compete for:

  • light
  • space
  • water
  • mineral ions
• things animals compete for:

  • food
  • water
  • territory
  • mating partners
• what is interdependance?


  when species depend on eachother
• what is a stable community?


  the populations of organisms are in balance with each other and with abiotic resources (water)
• what if a species disappeared?

  affects the whole community - organisms will run out of food = population decreases