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Archaeopteryx is regarded as an important fossil because it shows features of both reptiles and birds. What is its evolutionary significance called?
AA living fossil
BA connecting link
CA vestigial organ
DAn analogous organ
Answer & Solution
Correct answer: B. A connecting link
1. Archaeopteryx had feathered wings like a bird and a long tail, clawed digits and teeth like a reptile.
2. Sharing features of two groups makes it a connecting link between reptiles and birds.
3. A living fossil is a present-day organism resembling its ancient ancestors, not a transitional form, which rules out option A.
4. So Archaeopteryx is a connecting link, option B.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 19 Origin and Evolution of Life "Evidences from Palaeontology", p.283_
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