What do you know about eutrophication?
Biodiversity and Human Impacts Quiz
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Question 1 of 9
1. Question
Low, antibiotics, high, antigens, diseases, internal, pathogens
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Complete the sentence: Fish farming is problematic because fish are kept at densities where uneaten food and waste can accumulate quickly and change abiotic conditions for native species. Parasites and also spread relatively easily between densely packed fish, leading to the use of to protect fish from bacterial infections.
Correct 3 / 3 PointsIncorrect / 3 Points -
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Question 2 of 9
2. Question
Which of the following reasons is introducing species to non-native areas bad for biodiversity?
Correct 1 / 1 PointsIncorrect / 1 Points -
Question 3 of 9
3. Question
Put the statements in the correct order:
- Oxygen concentration in water decreases.
- Rainwater takes away fertilisers as they dissolve in water.
- Excess nitrates and phosphates are transported by rivers and streams to lakes and ponds.
- Nitrates and phosphates were limiting factors for algal/plant growth on the surface of the water, but they are now available causing rapid increase in growth.
- Farmers add fertilisers (nitrates and phosphates) to their fields.
- Surface organisms block sunlight to aquatic plants, reducing photosynthesis.
- Aquatic animals die due to a lack of oxygen.
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Question 4 of 9
4. Question
Use one of the following words to fill in the blank:
Instability, diversity, stability
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Complete the sentence: High levels of biodiversity lead to in ecosystems, since less organisms are less dependent on single species for survival.
CorrectIncorrectHint
one of these three is correct:
- Stability
- Instability
- Disease
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Question 5 of 9
5. Question
Use some of the following words to fill in the blanks:
Houses, habitats, water, food, tree, predator-
How can reforestation increase biodiversity? Through planting a variety of species, the diversity of will increase, leading to opportunities for a range of species for , shelter and mates.
Correct 3 / 3 PointsIncorrect / 3 PointsHint
Use the following words to answer the question (one word per blank):
- Tree
- Habitats
- Bushes
- Predators
- Food
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Question 6 of 9
6. Question
[question number = 06.7] Conservation of habitats is also important to protect endangered species. Which of the following are potential reasons for maintaining high levels of biodiversity?
Correct 2 / 2 PointsIncorrect / 2 Points -
Question 7 of 9
7. Question
Which of the following are benefits to protecting the rainforests of the world?
Correct 1 / 1 PointsIncorrect / 1 Points -
Question 8 of 9
8. Question
Predators are essential for healthy ecosystems – what happens if predators are removed due to extinction?
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Question 9 of 9
9. Question
Which of the following human activities negatively impacts biodiversity?
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