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4.1 Evolution and natural selection

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Question 1
F

Darwin visited the Galápagos Islands. He observed many species of finch. Each species had a different shape of beak and ate a different type of food.

The Figure shows the heads of three species of finch, A, B and C, and the main food of each species.

Figure

image

a.

Use the Figure to describe how the beak of finch B is adapted to the food it eats.

[1]
b.

Scientists think that all three species evolved from one species of finch that reached the islands from South America. On one island, the main food is large, hard seeds. Explain how finches with large, thick beaks could have evolved on this island.

[4]
c.

Darwin found that the finches on different islands had different beaks. Suggest why.

[1]
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.

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