23.) question 23 is an open-response question. approximately 200 kinds of trees and shrubs are found in grand canyon national park. the chart below lists the common and scientific names of some of the trees in the park. a. identify the two trees listed in the chart that are most closely related. explain your reasoning. b. identify two types of scientific evidence biologists use to classify living plants in the modern taxonomic system. c. describe how each type of evidence you identified in part (b) could be used by biologists to determine which two trees are more closely related to each other than to the other trees in the chart.