Evolution of Life

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Questions and Answers

Which scientist is known for proposing the theory of evolution by natural selection?

  • Gregor Mendel
  • Anton van Leeuwenhoek
  • Charles Darwin (correct)
  • Louis Pasteur

What is the primary focus of the Biology class 12 chapter on evolution of life?

  • The process of natural selection and its role in evolution (correct)
  • The role of mitochondria in cellular respiration
  • The classification of living organisms
  • The structure of DNA and its impact on evolution

What is a key factor contributing to the process of speciation?

  • Geographic isolation (correct)
  • Cloning
  • Genetic engineering
  • Photosynthesis

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Study Notes

Evolution Theory

  • Charles Darwin is known for proposing the theory of evolution by natural selection.

Evolution of Life

  • The primary focus of the Biology class 12 chapter on evolution of life is the study of the process of how life on Earth has changed over time.

Speciation

  • Geographical isolation is a key factor contributing to the process of speciation, where a new species emerges from a parent species.

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