BIO NMDCAT Lamarckism

nmdcat.online July 14, 2026

Which of the following best describes Lamarck’s first postulate of “Internal Vital Force”?

A. A chemical compound that speeds up metabolic reactions

B. An inherent life force that drives organisms toward greater structural complexity

✓

C. An external environmental pressure that causes mutations

D. A physical force generated by muscle contractions

📝 Explanation

Lamarck believed that all living organisms possess an innate, vital force that drives them to become more complex, organized, and structurally perfect over time.

📖 Additional Information

A chemical compound that speeds up metabolic reactions
An inherent life force that drives organisms toward greater structural complexity
An external environmental pressure that causes mutations
A physical force generated by muscle contractions

Lamarck believed that all living organisms possess an innate, vital force that drives them to become more complex, organized, and structurally perfect over time.

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