Comparison of even-toed ungulate and cetaceans genetic material has shown that the closest living relatives of whales and hippopotamuses is the paraphyletic group Artiodactyla. Dan Graur and Desmond Higgins were among the first to come to this conclusion, and included a paper published in 1994.
Definition of roundâtrip. : a trip to a place and back usually over the same route.
(Assume these expenses total $4,939.) If the round-trip plane fare and other travel-related expenses (such as food during the trip) are $1,750, you can deduct travel costs of $1,069 (11 / 18 Ã $1,750), plus the full $4,939 for the expenses you had in Paris.