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Which of the following statements are tr...

Which of the following statements are true for the phylum-Chordata?
(a) In urochordata notochord extends from head to tail and it is present throughout their life.
(b) In vertebrata notochord is present during the embryonic period only.
(c) Central nervous system is dorsal and hollow.
(d) Chordata is divided into 3 subphyla: Hemichordata,Tunicata and Cephalochordata.

A

(D) and (C)

B

(C) and (A)

C

(C) and (A)

D

(B) and (C)

Text Solution

Verified by Experts

The correct Answer is:
D
In vertebrata, notochord is present during embryonic period only as it is replaced by vertebral column. In chordates, central nervous system is dorsal and hollow.
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