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Evolutionary relationships can be studied through comparative anatomy and molecular biology from "summary" of NCERT Exemplar Problems-Solutions BIOLOGY class 12th by Arihant Experts

To understand evolutionary relationships, scientists often turn to comparative anatomy and molecular biology. Comparative anatomy involves studying the similarities and differences in the structures of organisms. By examining the anatomical features of different species, scientists can infer how closely related they are and how they have evolved over time. For example, if two species have similar bone structures or organs, it suggests that they share a common ancestor. On the other hand, if two species have distinct anatomical features, it indicates that they have evolved separately. By comparing the anatomy of various species, scientists can create phylogenetic trees that show the evolutionary relationships between them. Molecular biology,...
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    NCERT Exemplar Problems-Solutions BIOLOGY class 12th

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