Evolution

• What is the theory of evolution?

  Species evolved from simple life forms.
• Who proposed the theory of evolution by natural selection?

  Charles Darwin
• What observations did Darwin use to develop his theory?

  Observations from his round-the-world trip.
• What is meant by 'survival of the fittest'?

  Organisms best suited to the environment survive.
• What happens to successful organisms in terms of reproduction?

  They are more likely to reproduce and pass on genes.
• What is speciation?

  Formation of a new species over time.
• What leads to reproductive isolation in speciation?

  Populations change enough to prevent interbreeding.
• What is extinction?

  No individuals of a species remain.
• What are some reasons species become extinct?

  Environmental changes, predators, diseases, competition.
• What happened to the dodo bird?

  It became extinct due to human actions.
• What is natural selection?

  Survival of organisms with advantageous traits.
• Why was Darwin's theory controversial?

  It contradicted religious beliefs about creation.
• What did Lamarck propose about acquired characteristics?

  They are passed on to offspring.
• How does Lamarck's theory differ from Darwin's?

  Lamarck believed in acquired traits; Darwin did not.
• What evidence supports Darwin's theory?

  Genetics, fossil records, antibiotic resistance.
• Why was Lamarck's hypothesis rejected?

  Experiments did not support his ideas.
• What is the significance of the discovery of genetics for Darwin's theory?

  It explained how traits are passed on.
• How do fossils contribute to our understanding of evolution?

  They show changes in organisms over time.
• What is the role of new ideas in science?

  They drive scientific progress and understanding.
• What is the relationship between Darwin's theory and the concept of a Creator?

  Darwin's theory offers a natural explanation for life.
• What is the significance of the antibiotic resistance discovery?

  It supports evolution by natural selection.
• What are the key points of Darwin's theory of evolution by natural selection?

  • Organisms show variation in characteristics.
  • Competition for limited resources occurs.
  • The fittest organisms survive and reproduce.
  • Beneficial traits become more common over generations.
• What are the differences between Darwin's and Lamarck's theories of evolution?

  Darwin's Theory:

  • Natural selection drives evolution.
  • Traits are inherited genetically.

  
  

  Lamarck's Theory:

  • Acquired traits are passed to offspring.
  • Organisms change based on use or disuse of traits.
• What are the main causes of extinction?

  • Rapid environmental changes
  • Introduction of new predators
  • Diseases
  • Competition with new species
  • Catastrophic events
• What evidence supports Darwin's theory of evolution?

  • Genetic discoveries explaining trait inheritance
  • Fossil records showing gradual changes
  • Observations of antibiotic resistance in bacteria