摘要： The research by Darwin, Mendel and Turesson shows that . A. genetics is more important than the environment to plants B. genetics is less important than the environment to plants C. both genetics and the environment are important to plants D. neither genetics nor the environment is important to plants 5 Darwin observed that the birds with would eat . A. small beaks; hard seeds B. broad beaks; hard seeds C. hard beaks; hard seeds D. broad beaks; soft seeds

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