tailieunhanh - EVOLUTION AND GENETICS (Britannica Illustrated Science Library)

Life on Earth originated and then evolved from a universal common ancestor approximately billion years ago. Repeated speciation and the divergence of life can be inferred from shared sets of biochemical and morphological traits, or by shared DNA sequences. These homologous traits and sequences are more similar among species that share a more recent common ancestor, and can be used to reconstruct evolutionary histories, using both existing species and the fossil record. Existing patterns of biodiversity have been shaped both by speciation and by extinction | About the pagination of this eBook Due to the unique page numbering scheme of this book the electronic pagination of the eBook does not match the pagination of the printed version. To navigate the text please use the electronic Table of Contents that appears alongside the eBook or the Search function. For citation purposes use the page numbers that appear in the text. EVOLUTION AND GENETICS Britannica Illustrated Science Library Encyclopedia Britannica Inc. Chicago London New Delhi Paris Seoul Sydney Taipei .

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