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Cambridge IGCSE Biology practice

Which statement about adaptation is correct?

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MCQ

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cambridge_mcq

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Topic

Selection

Exam-style question

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Which statement about adaptation is correct?.

  1. A.It happens within an individual's lifetime
  2. B.It results from natural selection acting on variation
  3. C.It decreases the fitness of a population
  4. D.It causes individuals to change their genes

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Paper 4 structured question: Selection

Paper 4Theory (Extended)3 marks

Description

Adaptation Process

A population of beetles lives in a forest. Some beetles have green shells, and some have brown shells. Birds can see the green beetles more easily and eat them, but the brown beetles are better camouflaged and survive more often. Over many generations, the number of brown beetles increases in the population.

  1. a

    Describe how natural selection leads to adaptation in this beetle population.

    Aim for approximately 3 distinct marking points.

    [3]