12 exam-style questions · Biology only (B): not in Science (Double Award). Write your answer, check it against the mark scheme and tick the points you earned. Your marks stay on this device. Your writing is not saved.
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5.4B Distribution and biodiversity using quadrats
Exam question
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Describe how to use a belt transect to study the distribution of a plant from a hedge into a field.
(4)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 4 marks
5.4B Distribution and biodiversity using quadrats
Exam question
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Explain why quadrats are placed at regular intervals along a transect rather than randomly.
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Total for this question: 2 marks
5.4B Distribution and biodiversity using quadrats
Exam question
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What is a transect used to show?
(1)Total for this question: 1 mark
5.4B Distribution and biodiversity using quadrats
Exam question
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Illustrative transect data.
| Distance from wall / m | Moss cover / % | Light intensity / arbitrary units |
|---|---|---|
| 0 | 80 | 12 |
| 2 | 65 | 25 |
| 4 | 40 | 48 |
| 6 | 20 | 70 |
| 8 | 5 | 90 |
Plot moss cover against distance from the wall. Join your points with straight lines using a ruler.
(5)Graph skills: SLAPUK and choosing a scale
Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 5 marks
5.4B Distribution and biodiversity using quadrats
Exam question
Mark points shown after marking
| Distance from wall / m | Moss cover / % | Light intensity / arbitrary units |
|---|---|---|
| 0 | 80 | 12 |
| 2 | 65 | 25 |
| 4 | 40 | 48 |
| 6 | 20 | 70 |
| 8 | 5 | 90 |
Explain the distribution of moss shown by the data.
(3)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 3 marks
5.4B Distribution and biodiversity using quadrats
Exam question
Mark points shown after marking
| Distance from wall / m | Moss cover / % | Light intensity / arbitrary units |
|---|---|---|
| 0 | 80 | 12 |
| 2 | 65 | 25 |
| 4 | 40 | 48 |
| 6 | 20 | 70 |
| 8 | 5 | 90 |
Suggest one other abiotic factor that should be measured.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
5.4B Distribution and biodiversity using quadrats
Exam question
Mark points shown after marking
| Distance from wall / m | Moss cover / % | Light intensity / arbitrary units |
|---|---|---|
| 0 | 80 | 12 |
| 2 | 65 | 25 |
| 4 | 40 | 48 |
| 6 | 20 | 70 |
| 8 | 5 | 90 |
Explain why the data cannot prove that light causes the change in moss cover.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
5.4B Distribution and biodiversity using quadrats
Exam question
Mark points shown after marking
| Distance from wall / m | Moss cover / % | Light intensity / arbitrary units |
|---|---|---|
| 0 | 80 | 12 |
| 2 | 65 | 25 |
| 4 | 40 | 48 |
| 6 | 20 | 70 |
| 8 | 5 | 90 |
Suggest how to improve the reliability of this transect study.
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Total for this question: 2 marks
5.4B Distribution and biodiversity using quadrats
Exam question
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State the instrument used to measure light intensity.
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Total for this question: 1 mark
5.4B Distribution and biodiversity using quadrats
Exam question
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Compare random quadrat sampling with a transect.
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Total for this question: 2 marks
5.4B Distribution and biodiversity using quadrats
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Explain why a transect is useful on a rocky shore.
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Total for this question: 2 marks
5.4B Distribution and biodiversity using quadrats
Exam question
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Describe how to estimate percentage cover in a quadrat.
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Total for this question: 2 marks
