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

10. Compared with the theory of biogenesis, the concept of chemical evolution proposes that:

A. Living organisms always arise from existing organisms.
B. The first life originated through gradual chemical changes before biological evolution began.
✓
C. Viruses were the earliest forms of life.
D. Modern organisms continuously arise from non-living matter.

📝 Explanation

Correct: Chemical evolution explains how non-living chemicals gradually gave rise to the first living systems. A: Defines biogenesis. C: Not supported. D: Reflects spontaneous generation, which has been rejected. Concept: Chemical evolution versus biogenesis.

📖 Additional Information

  • Living organisms always arise from existing organisms.
  • The first life originated through gradual chemical changes before biological evolution began.
  • Viruses were the earliest forms of life.
  • Modern organisms continuously arise from non-living matter.

Correct: Chemical evolution explains how non-living chemicals gradually gave rise to the first living systems. A: Defines biogenesis. C: Not supported. D: Reflects spontaneous generation, which has been rejected. Concept: Chemical evolution versus biogenesis.

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