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Topic Notes · Easy summaries with diagrams
Chapter 10 — Chapter 10 — Evolution
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📘Easy summary
Evolution: change in heritable traits of a population over successive generations. Species: group of similar organisms that can interbreed and produce fertile offspring. Darwin sailed on HMS Beagle (1831–36); in the Galápagos Islands he saw finches with different beaks suited to different foods on different islands, giant tortoises varying by island, fossils resembling living animals, and that species vary and produce more offspring than survive.
⭐Key points
- Finches adapted to different foods.
🔬Diagram
🌿Real-life example
Seed-eating finches have thick beaks.
💡Exam tip
- Mention Galápagos finches.
✅Quick check
1. Finches showed:
2. Species can:
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