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4.1 Evolution and natural selection

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Question 6
F

The table shows the numbers of snails before and after birds fed on them. Shell colour is inherited.

Table

Shell colourNumber before feedingNumber after feeding
Yellow8020
Brown4020

Which statement is supported by the data?

[1]
A

Brown snails had twice the survival percentage of yellow snails.

B

Yellow snails had twice the survival percentage of brown snails.

C

Brown snails had the same survival percentage as yellow snails.

D

Yellow snails had four times the survival percentage of brown snails.

Markscheme

4.1 Evolution and natural selection Questions

  1. GCSE
  2. /Biology
  3. /4.1 Evolution and natural selection

44 exam-style questions on Edexcel GCSE Biology 4.1 Evolution and natural selection, covering 4.1.1 Work of Darwin and Wallace and 4.1.2 Resistant organisms and evolution. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank