In a mark–release–recapture study, 40 beetles were marked. Later 50 were caught, of which 8 were marked. Estimate the population size.
From Mock B · Paper 2 (topics 5–8)
9.22 marks
Give two assumptions made when using mark–release–recapture.
From Mock B · Paper 2 (topics 5–8)
16.34 marks
Evaluate the use of gene drives to control malaria (sentences 5–7).
From Mock B · Paper 3 (all topics, practical skills and essay)
4.13 marks
Describe how a student could estimate the percentage cover of a plant species in a field using random sampling.
From Mock C · Paper 3 (all topics, practical skills and essay)
4.13 marks
Describe how a belt transect could be used to investigate how the distribution of a plant changes up a sand dune.
Score 0 / 17 · 0 of 6 marked
This paper is written by Plasmo in the style of the AQA A-Level Biology exam. It is not a past paper and is not produced or endorsed by the exam board.
Populations in ecosystems Exam Questions: AQA A-Level Biology | Plasmo