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Which of the following statements is/are...

Which of the following statements is/are not true
A. In Urochordata, notochord is present only in larval tail.
B. In Cephalochordata, notochord extends from head to tail region.
C. Branchiosoma belongs to Hemichordata
D. Only one Class of living members, Class Cyclostomata represents the Super Class Agnatha.

A

Only III

B

I and IV

C

III and IV

D

I, II and IV

Text Solution

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The correct Answer is:
A
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Which of the following statements is/are not true? (a) In urochordata, notochord is present in 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 super class agnatha

In which one of the following protochordates notochord present only in the tail of larva?

Consider the following statements :- (1) Protochordates are exclusively marine (2) In cephalochordates, Notochord extends from head to tail region (3) In urochordates, Notochord is present only in larval tail (4) Cranium and vertebral column are bony in cyclostomates Which of the above statement is/are correct?

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.

In the sub-phylum (_i_) notochord is present only in the larval tail, while in (_ii_), it extends from head to tail region and is persistent throughout their life. In (_iii_) class of vertebrate notochord is replaced by certilaginous vertebral column and (_iv_) class of vertebrate the notochord is replaced by bony vertebral column. select the option which is correct for all (i)-(iv) blanks.

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Which of the following statements is/are correct or incorrect regarding Class Amphibia? (i) Body is divisible into head and trunk. Tail is present in some amphibians. (ii) Show respiration by gills, lungs and through skin. (iii) Has scales in all its members. (iv) Can lead dual life (aquatic and terrestrial) (v) Has eyelids.

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