Question

scientists have discovered and analyzed a huge number of fossils that represent a wide variety of species. what type of evidence for evolution is provided by the fossil record? a. incomplete evidence for evolution, because of the many gaps that remain in the fossil record b. weak evidence for evolution, because fossils show that modern species are almost the same as ancient species c. strong evidence for evolution, because sequences of fossils show how modern species evolved from ancient ancestors d. strong evidence for evolution, because fossils show that ancient species were smaller, simpler versions of modern species

Explanation:

To determine the correct answer, we analyze each option:

• Option A: The fossil record has many fossils representing diverse species, and while there are gaps, the overall evidence from fossils (like transitional fossils, sequences showing evolution) is strong, so "incomplete evidence" is incorrect.
• Option B: Fossils do not show modern species as almost the same as ancient species; instead, they show change over time, so this is incorrect.
• Option C: Sequences of fossils (e.g., in sedimentary rock layers, transitional fossils) clearly demonstrate how modern species evolved from ancient ancestors, providing strong evidence for evolution. This matches the scientific understanding of fossil evidence for evolution.
• Option D: The key evidence from fossils is the evolutionary transition (from ancient to modern, showing development of complexity, new traits), not just size/simplicity. So this is not the main reason fossils are strong evidence.

Answer:

C. Strong evidence for evolution, because sequences of fossils show how modern species evolved from ancient ancestors