Paper details: 1. Although homology is a key theme in the course it is only one aspect of evolution in some details ,horizontally acquired variations (also known as lateral gene transfer) and vertically generated variations (descent)2.Briefly describe the episode of rapid complexification in evolution known as the Cambrian Explosion,Which branches of the phylogenetic tree are involved in this episode?3. comparing extant species with the fossil records some species had evolved significantly overtime while other species did not evolve as much. Suggest some factors which explain this observation.4. Does the tree of life exist?ConclusionReferences Please write with an Introduction ,examples with explanation and perfect conclusions with clear References.