BIO NMDCAT Lamarckism

nmdcat.online July 14, 2026

In a historical biology seminar, a student argues that the modern giraffe’s long neck is due to ancestors stretching their necks to reach high leaves, passing this elongated trait to their offspring. Which evolutionary theory is this student advocating?

A. Darwinism

B. Lamarckism

✓

C. Neo-Darwinism

D. Mutation Theory of DeVries

📝 Explanation

The elongation of the giraffe's neck via stretching (use of organ) and subsequent inheritance of this stretched neck is the classic textbook example of Lamarckism (Inheritance of Acquired Characters).

📖 Additional Information

Darwinism
Lamarckism
Neo-Darwinism
Mutation Theory of DeVries

The elongation of the giraffe's neck via stretching (use of organ) and subsequent inheritance of this stretched neck is the classic textbook example of Lamarckism (Inheritance of Acquired Characters).

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