This phylogenetic hypothesis shows the major clades of chordates in relation to the other main deuterostome clade, Echinodermata. Derived characters are listed for selected clades; for example, only gnathostomes have a jaw. In some lineages, derived traits have been lost over time or occur in reduced form; hagfishes and lampreys, for example, are vertebrates with reduced vertebrae.
Based on this phylogeny, which vertebrate groups would you expect to have lungs or lung derivatives? Select all that apply.