Flashcards
8.2 Environmental change and distribution of organisms
Cards in this deck (9)
- 1What do living organisms form?Communities that we need to understand
- 2What do changes in the environment affect?The distribution of living organisms
- 3What are the environmental factors that may affect organisms?Change in numbers or types of competitor organism
Temperature
Availability of nutrients
Amount of light
Availability of water
Availability of oxygen and carbon dioxide
Availability of nesting sites, shelter and appropriate habitats - 4How can living organisms be used as indicators of environmental change?Lichens can be used as air pollution indicators, particularly of the concentration of sulphur dioxide in the atmosphere
Invertebrate animals can be used as water pollution indicators and are used to indicate the concentration of dissolved oxygen in water - 5Which environmental changes can be measured using non-living indicators?Oxygen levels
Temperature
Rainfall - 6What are the advantages of using equipment to measure oxygen levels, temperature and rainfall?More accurate
- 7What are the disadvantages of using equipment to measure oxygen levels, temperature and rainfall?*
- 8How can quantitative data on the distribution of organisms be obtained?By random sampling with quadrants
By sampling along a transect - 9What is size of distribution related to?Validity
Reproducibility
Repeatability
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- GCSE Biology (8 Adaptation and interdependence) Flashcards on 8.2 Environmental change and distribution of organisms, created by Anisha Rai on 03/05/2016.
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- Anisha Rai
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