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* ***Branch***. A representation of the evolution of a taxon over time (sometimes also known as an evolutionary lineage). There are three main types of branches in a tree. Terminal branches are those that lead to the tips or leaves in the tree. Internal branches connect branches to each other. And the root branch, also known as the root of the tree, is the branch that leads from the base of the tree to the first node in the tree.   * ***Node***. These are the points where individual branches end. In the internal parts of a phylogenetic tree, single branches can "split" producing multiple descendant branches. The point are at  which the branches split is known as an internal node. If a branch ends at a taxon, the end point is known as a "terminal node".