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Subphylum Cephalochordata

In both Uroch...

Question

In both Urochordata and Cephalochordata, the notochord is present at the tail region only.

A

True

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B

False

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Solution

The correct option is B False
While Urochordata and Cephalochordata belong to the same Phylum Chordata, both of them do not contain notochord throughout their life. In Urochordata, the notochord is present only at the larval stage. In Cephalochordata on the other hand, it is present throughout their life.

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Similar questions

Q. Which of the following statements is (are) not true?
(A) In Urochordata, the notochord is present only in the larval tail.
(B) In Cephalochordata, notochord extends from head to tail region.
(C) Branchiostoma belongs to Hemichordata
(D) Only one class of living members, class Cyclostomata represents the superclass Agnatha.

Q. Which of the following statements is not true?
A. In Urochordata, the notochord is present only in the larval tail.
B. In Cephalochordata, notochord extends from head to tail region.
C. Branchiostoma belongs to Hemichordata.
D. Only one class of living members, class Cyclostomata represents the Superclass Agnatha.

What is the position of Notochord in the body of

(a) Urochordata; (b) Cephalochordata ?

Q. Which of the following statements are true for the phylum - chordata?
(a) In urochordata notochord extends from head to tail and it is present throughtout 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.

Q. In _______, notochord is present only in larval tail while in ________, it extends from head to tail region and is persistent throughout their life.

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