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nmdcat.online July 14, 2026

According to Darwin’s concept of “descent with modification,” all living organisms:

A. Arose independently from inorganic matter through spontaneous generation.
B. Are descended from a common ancestor but have accumulated modifications over generations.
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C. Remain phenotypically identical to their ancestral forms due to genetic conservation.
D. Evolve in a predetermined, linear path toward structural perfection.

📝 Explanation

"Descent with modification" is Darwin's definition of evolution, indicating that species are related by common ancestry but have changed over time in response to natural selection.

📖 Additional Information

  • Arose independently from inorganic matter through spontaneous generation.
  • Are descended from a common ancestor but have accumulated modifications over generations.
  • Remain phenotypically identical to their ancestral forms due to genetic conservation.
  • Evolve in a predetermined, linear path toward structural perfection.

"Descent with modification" is Darwin's definition of evolution, indicating that species are related by common ancestry but have changed over time in response to natural selection.

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