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BIO NMDCAT Lamarckism
nmdcat.online July 14, 2026

Which of the following is an example of a vestigial organ in humans that Lamarckism would explain as a result of “disuse”?

A. The functional human heart
B. The vermiform appendix
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C. The highly developed cerebral cortex
D. The biceps brachii muscle

📝 Explanation

Lamarckism explains vestigial organs (like the human appendix, coccyx, or wisdom teeth) as structures that lost their function and gradually degenerated due to continuous disuse over generations.

📖 Additional Information

  • The functional human heart
  • The vermiform appendix
  • The highly developed cerebral cortex
  • The biceps brachii muscle

Lamarckism explains vestigial organs (like the human appendix, coccyx, or wisdom teeth) as structures that lost their function and gradually degenerated due to continuous disuse over generations.

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