Indicator species 0.0 / 5 ? BiologyHuman impact on the environmentGCSEEdexcel Created by: hanrobothamCreated on: 15-05-16 11:20 What is an indicator species? Organisms that are sensitive to changes in the environment and they can be sued to study the effect of human activities. 1 of 10 Give What animals are good indicators for changes in water pollution? Stonefly larvae and freshwater shrimp. 2 of 10 What are water pollution indicators sensitive to? The concentration of dissolved oxygen in the water. 3 of 10 What can stonefly larvae and freshwater shrimps tell us about the conditions of water. If they are present in water then we know that the water is clean because they are senstive to polluted water. 4 of 10 What do invertebrates like bloodworms and sludgeworms tell us about the conditions of water? They indicate very high levels of water pollution because they adapted to live in polluted conditions. 5 of 10 How can air pollution be monitored? By looking at types of lichen which are sensitive to the concentration of sulfur dioxide in the atmosphere. 6 of 10 What can lichen tell us about the conditions of the air? If there is lots of lichen present then the air is clean in that location due to them being sensitive to polluted air. 7 of 10 What other organisms can tell us things about the conditions of the air? Blackspot fungus which appears on rose leaves. If they are present then the air is clean. 8 of 10 Give an example of a non-living indicator that can tell use about the conditions of water. Dissolved oxygen meters and chemical tests measure the concentration of dissolved oxygen in water. 9 of 10 Give an example of a non-living indicator that can tell us about the conditons of the air. Electronic meters and various laboratory tests can measure the concentration of sulfur dioxide in the air. 10 of 10
Comments
No comments have yet been made