By analysing the DNA of humans and living apes, scientists have produced the phylogenetic tree below. Study the evolutionary relationship below and then answer the questions that follow.

Here are the answers based on the phylogenetic tree: 3.2.1) To determine when gorillas first arose, locate the point on the tree where the gorilla lineage diverges from the main branch. This occurs at 7 mya. The handwritten answer "7 mya" is ✅ Correct. 3.2.2) To determine when the human line branched off from the chimpanzee, find the most recent common ancestor of humans and chimpanzees. This point is where the human lineage separates from the lineage leading to chimpanzees (and bonobos). This occurs at 5 mya. The handwritten answer "5 mya" is ✅ Correct. 3.2.3) To find the two most closely related organisms, look for the pair that shares the most recent common ancestor. On the tree, the chimpanzee and bonobo lineages diverge from each other at 2.5 mya, which is the most recent divergence shown. The two organisms most closely related are Chimpanzee and Bonobo. That's 2 down. 3 left today — send the next one.