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nmdcat.online July 14, 2026

In what major way does Lamarck’s view of adaptation differ from modern evolutionary synthesis (Neo-Darwinism)?

A. Lamarck believed adaptations occur within an individual's lifetime; Neo-Darwinism states adaptations arise in populations over generations through selection of genetic variations.
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B. Lamarck believed adaptations do not occur at all.
C. Neo-Darwinism states that environment has no role in evolution.
D. Lamarck believed that only mutations in germ cells cause adaptations.

📝 Explanation

Lamarckism relies on individual-level somatic adaptation during a single lifetime, whereas modern evolutionary biology relies on population-level changes in allele frequencies over generations.

📖 Additional Information

  • Lamarck believed adaptations occur within an individual's lifetime; Neo-Darwinism states adaptations arise in populations over generations through selection of genetic variations.
  • Lamarck believed adaptations do not occur at all.
  • Neo-Darwinism states that environment has no role in evolution.
  • Lamarck believed that only mutations in germ cells cause adaptations.

Lamarckism relies on individual-level somatic adaptation during a single lifetime, whereas modern evolutionary biology relies on population-level changes in allele frequencies over generations.

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