Which of the following have biologists used in an attempt to understand the phylogenetic relationships among organisms?

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Biologists have used all of these methods to understand the phylogenetic relationships among organisms. Fossil records provide important information about the evolutionary history of organisms, comparing morphological features helps to identify homologous structures, and examining similarities and differences in DNA sequences of homologous genes provides evidence for shared ancestry.

Which of the Following Have Biologists Used in an Attempt