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Inheritance & EvolutionKey Facts

Evidence for Evolution

Part of Evolution — GCSE Biology

This key facts covers Evidence for Evolution within Evolution for GCSE Biology. Theory of evolution, natural selection, and evidence for evolution It is section 3 of 13 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 3 of 13

Practice

26 questions

Recall

25 flashcards

Evidence for Evolution

  • Fossils: Show how organisms have changed over time
  • Antibiotic resistance: Bacteria evolve resistance — we can see it happen!
  • DNA: Similar genes in related species
  • Homologous structures: Same bone structure in different animals (e.g., arm, wing, flipper)

Keep building this topic

Read this section alongside the surrounding pages in Evolution. That gives you the full topic sequence instead of a single isolated revision point.

Natural Selection — Step by StepExample: Antibiotic ResistanceThe Story: The Survival of the FittestHow It Works: Natural Selection and Evolution

Practice Questions for Evolution

What is evolution?

  • A. The gradual change in living organisms over time
  • B. The growth of an individual organism
  • C. Animals moving to different habitats
  • D. The creation of new organisms from nothing
1 markfoundation

Describe three pieces of evidence that support Darwin's theory of evolution.

4 marksstandard

Quick Recall Flashcards

What is evolution?
The gradual change in the inherited characteristics of a population over many generations through the process of natural selection. It can lead to new species forming over very long time periods.
What did Charles Darwin propose and when?
In 1859, Darwin published 'On the Origin of Species', proposing that all species evolve through natural selection. Individuals with advantageous characteristics are more likely to survive, reproduce, and pass on those traits to offspring.

26 questions on Evolution — practise free

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Natural Selection — Step by Step

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Example: Antibiotic Resistance