How is a phylogenetic tree arranged

Answer 1

A phylogenetic tree is typically arranged in a hierarchical fashion, with each branch representing a different organism or group of organisms. The tree is usually rooted at the base, representing a common ancestor from which all the other organisms in the tree have evolved. The branches of the tree represent evolutionary relationships, with organisms that are more closely related appearing closer together on the tree. The length of the branches may indicate the amount of genetic divergence between the organisms, with longer branches indicating greater evolutionary distance. Overall, a phylogenetic tree is arranged to visually represent the evolutionary relationships between different organisms or groups of organisms.