The Authors of Your Textbook Suggest That,"for Genes Shared Among

The authors of your textbook suggest that,"for genes shared among all organisms…Animals,Plants,and Fungi appear to possess less than 10% of the nucleotide-level diversity observed on Earth." Given the relatively recently generated phylogenies such as those in the accompanying figures,along with what you know about the history of life on this planet,does this seem like a reasonable statement? Explain.