You are studying finches on the Galápagos Islands. What evidence do you need to show common descent and adaptation to the environment? (pages \(518-23\) )

To show common descent and adaptation among finches on the Galápagos Islands, gather evidence by following these steps: (1) Observe and document morphological traits of different finch species, such as beak size and shape, and identify patterns between these traits and respective food sources. (2) Collect and analyze DNA samples from each species, comparing their genetic makeup to identify common descent and divergence. (3) Investigate different habitats on the islands and assess their correlation with specific morphological traits in finches. (4) Study fossil evidence of ancestral finch species to understand their evolution and adaptation over time. (5) Combine the morphological, genetic, and fossil data to create a phylogenetic tree showing the relationships and common ancestry among the finch species.