Answer:
A cladogram is a branching diagram that represents the hypothetical relationship (phylogenetic relationship) between different groups of organisms. It is used in phylogenetic analysis to determine the evolutionary relatedness between organisms.
Each branch on a cladogram represents an evolutionary lineage. The names of specific taxa are placed at the end of each branch, while the names of groups to which those taxa belong are placed at the intersection of branches (nodes). By analyzing shared characteristics among different species and their ancestors, scientists can use cladograms to propose and ask questions about their evolutionary relationships.