Question Constellation Sign up for free

AQA · GCSE · Combined Science · Higher

Evolution of flower colour in orchids

Q04.3 4 marks

One present day species has bright purple flowers.

Describe how an orchid with bright purple flowers may have evolved from the ancestral species which has pale yellow flowers.

Write your answer first. You can study the marking guidance whenever you need it.

Study the marking See what earns credit and compare it with a full-mark answer.

What a strong answer needs

  1. 1 Variation
  2. 2 Advantage
  3. 3 Reproduce
  4. 4 Inherited