Titlebook: Bird Species; How They Arise, Modi Dieter Thomas Tietze Book‘‘‘‘‘‘‘‘ 2018 The Editor(s) (if applicable) and The Author(s) 2018 Avian Specia

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https://doi.org/10.1007/978-3-8348-8333-9e expression of genes is regulated by the external (temperature, stress, resource availability) and internal environment (metabolism, cell division cycle), and the gene-specific role in the respective tissue organism. Several processes underlying evolutionary change, e.g., mutation, genetic drift, g

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