Question

Differentiate between the following:

Paleontological and Biogeographical evidence

Answer 1

Basis of Difference	Palaeontological evidence	Biogeographical evidence
What is studied	Fossils and their positions in rock layers	Geographic distribution of organisms
Main evidence	Preserved remains, impressions and traces	Similarities and differences among populations in different regions
What it can show	Extinction, transitional forms and change through time	Effects of isolation, dispersal and geographic history
Common example	Archaeopteryx as a fossil with bird and reptile features	Darwin’s Galápagos finches and their beak adaptations
Evolutionary value	Helps reconstruct evolutionary sequences	Helps explain independent adaptation and formation of distinct species