The most direct evidence for the course of evolution comes from
Correct answer: D. the fossil record
- A. comparative embryology
- B. vestigial organs
- C. biochemical similarity between proteins
- D. the fossil record
Explanation
Fossils are the only evidence that shows extinct organisms themselves, arranged in dated rock layers, so they give an actual sequence of change over time rather than an inference drawn from living species. The other three lines are powerful but indirect, since they compare organisms alive today and reason backwards. The fossil record is incomplete, which is its main limitation, not its reliability.
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About Concept of Evolution
Evolution is the heritable change in populations over generations, driven by mutation, recombination, natural selection, genetic drift and reproductive isolation. Questions examine variation, adaptation, survival and reproduction, speciation, fossil and anatomical evidence, and the difference between individual acclimatization and evolutionary change in a population.
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