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Ecosystems :recycle: (Changes to ecosystems. (Human activity. (Overfishing…

- - - - Biosphere reserves. They aren't affected by humans.
      - We can continue using the natural resouces in the future.
      - It doesn't cause permanent damage to the environment.
      - It is essential for future life in our planet.
    - - Saving water.
      - Saving energy.
      - Recycling
      - Respecting nature.
- - - - Population: Same species, live together.
      - Community: Different populations, live together.
  - - - Geographical relief.
      - Temperature.
      - Soil.
- - - - Food chain: Between organisms of different trophic groups.
      - Food web: It shows the different food chains in an ecosystems.
- - - - Prairie or savannah: Includes soil, often rivers and lakes, grasses grow there, there are zebras, owls...
      - Terrestrial: Coast, desert, forest, prairies...
      - Forest or woodland: Includes soil, rocks, plants, trees, snakes, birds, ants...
      - Rainforest: It's near Ecuator,it's hot, humid and more than a half of the animals in the world live there.
      - Aquatic ecosystems: Includes rivers, oceans, wetlands, lakes...
    - - City: It covers a large part of the earth, the biotope is formed by roads, buildings... And the biocoenosis is formed by plants and animals.
- - - - Examples:
        
        The desert: Includes cacti, foxes, lizards, snakes...
        
        The polar regions: Includes seals, fish, penguins...
        
        Bacteria ca be found in any ecosystem.
  - - - The savannah in Africa.
      - The rainforest in America, Asia and Africa.
      - The tundra in North America, Europe and Asia.
      - Other ecosystims with trees, lakes, animals...