If phylogenetics is not a factor here, we have phlogeny is the key factor, then we only have Relative testes size A 02; 3 06; 2 2;6 6; 3 3; 2 B Group size E F (b) independent data points, but if _____independent data points. Relative testes size Group size
In phylogenetic studies, the most suitable method to visually represent the evolutionary relationships among a group of organisms is through a graphic illustration called as the phylogenetic tree. It is usually a two-dimensional graph showing evolutionary relationships between organisms or genes from various organisms. It is represented by branches and nodes. Nodes can be internal or external. Each internal node defines the last common ancestor of the two lineages. External nodes or terminal nodes defines the tip of the tree i.e., extant taxonomic unit under consideration. The branches of the phylogenetic tree bifurcate, which is called as dichotomy. In this case, each ancestor divides and gives rise to descendants. The phylogenetic tree can be rooted or unrooted. A rooted tree depicts the existence of a common ancestor from which all other species have originated and indicates the direction of the evolutionary process.
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