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BIO NMDCAT Concept of Evolution
nmdcat.online July 14, 2026

43. Which observation would provide the strongest evidence against spontaneous generation under present-day conditions?

A. Sterile nutrient broth remains free of microorganisms unless contaminated.
✓
B. Organic molecules are found in meteorites.
C. Amino acids can be synthesized in laboratories.
D. Some bacteria survive extreme environments.

📝 Explanation

Correct: This observation, demonstrated by Pasteur, supports biogenesis. B: Relates to prebiotic chemistry. C: Supports chemical evolution. D: Unrelated to spontaneous generation. Concept: Biogenesis.

📖 Additional Information

  • Sterile nutrient broth remains free of microorganisms unless contaminated.
  • Organic molecules are found in meteorites.
  • Amino acids can be synthesized in laboratories.
  • Some bacteria survive extreme environments.

Correct: This observation, demonstrated by Pasteur, supports biogenesis. B: Relates to prebiotic chemistry. C: Supports chemical evolution. D: Unrelated to spontaneous generation. Concept: Biogenesis.

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