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Flashcards · Biology · Communities in Ecosystems

Levels of Organisation in an Ecosystem

17 cards

  1. What is an organism?

    A single living thing.

  2. What is a species?

    A group of similar organisms that can breed together to produce fertile offspring.

  3. What is a population?

    All the organisms of one species living in an area.

  4. What is a community?

    All the populations of different species living in an area.

  5. What is an ecosystem?

    A community and its non-living surroundings.

  6. What is a habitat?

    The place where an organism lives.

  7. Which level includes the abiotic factors?

    The ecosystem.

  8. Which level of organisation is only made of one species?

    A population.

  9. Name the four levels in order, from smallest to largest.

    Organism, population, community, ecosystem.

  10. What is an example of a population in a pond?

    All the sticklebacks.

  11. What is an example of a community in a pond?

    All the plants and animals living in it.

  12. Give an example of an abiotic part of a pond ecosystem.

    The water, light or temperature.

  13. Can an ecosystem be small?

    Yes, for example a puddle or a rotting log.

  14. How many species are in a population?

    One.

  15. Why can many species share an ecosystem?

    Each species has its own habitat and role.

  16. Four levels of organisation with a pointer marked X to the community. Name the level of organisation marked X.

    A community. It is all the populations of different species living in an area.

  17. Four levels of organisation with no labels. Describe each level of organisation. The same four levels with every name and description.

    Organism: one living thing. Population: all the organisms of one species in an area. Community: all the populations of different species in an area. Ecosystem: the community and its non-living surroundings.