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BIO NMDCAT Lamarckism
nmdcat.online July 14, 2026

According to Jean-Baptiste Lamarck, what is the primary driving force that initiates physical or physiological changes in an organism during its lifetime?

A. Direct genetic mutation
B. Alteration in environmental conditions
✓
C. Innate desire for perfection
D. Direct intervention of a creator

📝 Explanation

Lamarck's theory posits that environmental changes create new needs ("besoin") in an organism, which drives changes in habits, leading to the use or disuse of specific organs.

📖 Additional Information

  • Direct genetic mutation
  • Alteration in environmental conditions
  • Innate desire for perfection
  • Direct intervention of a creator

Lamarck's theory posits that environmental changes create new needs ("besoin") in an organism, which drives changes in habits, leading to the use or disuse of specific organs.

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