The Living World. Key Words.

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  • The Living World.
    • Ecosystems.
      • Abiotic.
        • Non-living things.
      • Biotic.
        • Living things.
      • Consumer.
        • Creature that eats animals and/or plant matter.
      • Decomposer.
        • An organism that breaks down dead tissue, which is then recycled to the environment
      • Ecosystem.
        • A community of plants and animals that interact with each other and their physical environment.
      • Food Chain.
        • The connections between different organisms (plants and animals) that rely on one another as their source of food.
      • Food Web.
        • A complex hierarchy of plants and animals relying on each other for food.
      • Producer.
        • An organism or plant that is able to absorb energy from the sun through photosynthesis.
    • Tropical Rainforests.
      • Biodiversity.
        • The variety of life in the world or a particular habitat.
      • Commercial Farming.
        • Farming to sell produce for a profit to retailers or food processing companies.
      • Debt Reduction.
        • Countries are relieved of some of their debt in return for protecting their rainforests.
      • Deforestation.
        • The chopping down and removal of trees to clear an area of forest.
      • Ecotourism.
        • Responsible travel to natural areas that conserves the environment, sustains the wellbeing of the local people, and may involve education.
      • Logging.
        • The business of cutting down trees and transporting the logs to sawmills.
      • Mineral Extraction.
        • The removal of solid mineral resources from the earth.
      • Selective Logging.
        • The cutting out of trees which are mature or inferior, to encourage the growth of the remaining trees in a forest or wood
    • Hot Deserts.
      • Intermediate Technology.
        • Technology that is suited to the needs, skills, knowledge and wealth of local people
      • Desertification
        • The process by which land becomes drier and degraded.
      • Hot Desert.
        • Parts of the world that have high average temperatures and very low precipitation.
      • Over-cultivation.
        • Exhausting the soil by over-cropping the land.
      • Overgrazing.
        • Grazing too many livestock for too long on the land, so it is unable to recover its vegetation.
  • Nutrient Cycling.
    • A set of processes whereby organisms extract minerals necessary for growth from soil or water, before passing them on through the food chain.
  • Global Ecosystem.
    • Very large ecological areas on the earth’s surface (or biomes), with fauna and flora (animals and plants) adapting to their environment.
  • Soil erosion
    • Removal of topsoil faster than it can be replaced, due to natural (water and wind action), animal, and human activity. 
  • Subsistence Farming.
    • A type of agriculture producing food and materials for the benefit only of the farmer and their family.
  • Sustainability.
    • Actions and forms of progress that meet the needs of the present without reducing the ability of future generations to meet their needs.

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