plumiIndex of diversity: Edexcel International A Level Biology questions
Edexcel International A Level Biology past-paper questions on 4.5.3 Index of diversity, 2019–2025, with mark schemes and examiner’s reports where available.
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Q8(c)(i)
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All 10 questions on Index of diversity, as a list
- January 2025, AS Unit 2, Q8(c)(i) (3 marks): An index of diversity (D) is calculated using the formula: D = N(N 1 ) n(n 1 ) Calculate the index of diversity for habitat 1. Use the table and formula to help
- January 2025, AS Unit 2, Q8(c)(ii) (1 mark): Habitat 2 has an index of diversity (D) of 2.80 A student concluded that the second habitat had a higher biodiversity. State whether you agree or disagree with
- June 2024, AS Unit 2, Q8(c)(i) (3 marks): An index of diversity (D) is calculated using the formula: ( ) D = N N 1 − ( ) ∑ − n n 1 Calculate the index of diversity for habitat two. Use the table and the
- June 2024, AS Unit 2, Q8(c)(ii) (1 mark): State which habitat has the higher biodiversity. Give a reason for your answer. (1)
- January 2024, AS Unit 2, Q5(b)(ii) (3 marks): The number of individuals of different species in this area of the lake was measured before the appearance of the New Zealand pygmy weed. The table shows these
- January 2024, AS Unit 2, Q5(b)(iii) (2 marks): A year after the appearance of the New Zealand pygmy weed in this lake the index of diversity (D) was found to be 1.8. Suggest the effect of the New Zealand pyg
- June 2023, AS Unit 2, Q8(b) (3 marks): Snow leopards are found in several areas in Asia. The map shows the areas where snow leopards can be found. Key Areas in which snow leopards are found Russia Ka
- October 2022, AS Unit 2, Q7(c) (4 marks): A study compared the diversity of cichlid species in two crater lakes. The index of diversity (D) for Lake Xiloá was 2.8. The table shows the data obtained from
- June 2022, AS Unit 2, Q8(c)(ii) (1 mark): Write a formula that could be used to determine the biodiversity of a habitat in Yellowstone National Park. (1)
- June 2021, AS Unit 2, Q7(c)(i) (3 marks): Calculate the index of diversity (D) for this area of the forest using the formula N(N − 1) D = Σ − n(n 1) Use the table to help you. Give your answer to one de
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