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JAMB Biology 1999 Question 45

Question 45

Evolution

From an evolutionary standpoint, the older a fossil-bearing rock is, the more likely it is to contain

  1. A.aves as opposed to amphibians
  2. B.invertebrates as opposed to vertebrates
  3. C.angiosperms as opposed to algae
  4. D.vertebrates as opposed to invertebrates.
Show the answer and explanation

Answer: B (invertebrates as opposed to vertebrates)

Explanation

Simpler organisms appeared first, so older rocks contain invertebrates and newer rocks contain vertebrates.