The following are the statements about non-chordates: A. Pharynx is perforated by gill slits. B. Notochord…
The following are the statements about non-chordates:
A. Pharynx is perforated by gill slits.
B. Notochord is absent.
C. Central nervous system is dorsal.
D. Heart is dorsal if present.
E. Post anal tail is absent.
Choose the most appropriate answer from the options given below:
A, B \& D only
$\mathrm{B}, \mathrm{D}$ \& E only
B, C \& D only
A \& C only
Solution
The correct answer is option no. (2) as the features of non-chordates among the given statements are:
B. Notochord is absent.
D. Heart is dorsal if present.
E. Post anal tail is absent.
Statements A and C are features of chordates.
Hence, option (2) is correct and options (1), (3) and (4) are incorrect.