DP Biology (first assessment 2025)

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Question 20N.2.SL.TZ0.14b

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Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.2.SL.TZ0.14b
Level SL Paper 2 Time zone TZ0
Command term Outline Question number b Adapted from N/A
b.
[Maximum mark: 1]
20N.2.SL.TZ0.14b
(b)

Calculation of Simpson’s reciprocal diversity index for both rockpools gives the following results.

Outline what conclusion can be drawn from the results.

[1]

Markscheme

B is more diverse/biodiverse than A;

Accept vice-versa. Do not accept greater Simpson’s reciprocal diversity index.

Examiners report

The conclusion from the table showing values of Simpson’s reciprocal diversity index required mention of biodiversity, not simply that one pool is more diverse.

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