ecosystems

Cards (9)

  • what is an ecosystem?
    it included all the living and non living parts of an area
  • what is a producer?

    eg grass - used sunlight energy to produce food
  • what is a consumer?
    gets its energy by eating other organisms, they can eat producers or other consumers
  • what is a decomposer?

    is an organism that eats its energy by breaking down dead material. bacteria and fungi are decomposers. (fallen leaves, animal remains)
  • what is the nutrient cycle showing?
    shows how nutrients move through an ecosystem
  • what is the nutrient cycle?
    1. when dead material decomposes nutrients are released into the soil
    2. these nutrients are taken up from the soil by the plants. the plants may be eaten by consumers
    3. when plants or consumers die the nutrients are returned to the soil
    4. the transfer of nutrients is called nutrient cycling
  • what does a food chain show?
    a food chain shows what eats what
  • what does a food web show?

    a food web shows lots of food chains and how they overlap
  • each part of an ecosystem depends on other parts eg consumers may depends on producers as a habutat and a source of food.