According to Table 4.1 in the text, the true features of Chordates are: 1. Notochord is present. 2. Central nervous system is dorsal, hollow and single. 3. Pharynx is perforated by gill slits. 4. Heart is ventral. 5. A post-anal part (tail) is present. Any statement suggesting the heart is dorsal, the CNS is ventral/solid/double, or the post-anal tail is absent would be 'not true' for chordates. (Statements a-e are missing from input).