The following are the statements about non-chordates: Choose the most appropriate answer from the options given below:
- A & C only
- A, B & D only
- B, D & E only
- B, C & D only
Answer
(3) B, D & E only
Solution
In non-chordates: notochord is absent (B), the central nervous system is ventral, solid and double (C is wrong), pharyngeal gill slits are absent (A is wrong), the heart is dorsal if present (D) and the post-anal tail is absent (E).
Hence B, D and E are correct.
Answer: (3)