Evidence for evolution includes the presence of _______________________, which are similar structures shared by different species. a. gradual structures b. vestigial structures c. integrated structures d. homologous structures
The answer is d. homologous structures. Homologous structures are similar structures shared by different species. For example, the anatomy of joints in bones of birds and dinosaurs, support the idea that these two groups have a common ancestor. But since these two groups are different enough to be separated into different classes, it can be concluded that they evolved from the common ancestor.