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Chordata Protochordata - Questions and Answers

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56. Retrogressive metamorphosis is peculiar to
A. Urochordates
B. Hemichordates
C. Cephalochordates
D. All the above
Explanation:
57. Amphioxus belongs to
A. Craniata
B. Hemichordata
C. Urochordata
D. Cephalochordata
Explanation:
58. Crocodile and Penguin are similar to whale and Dog fish in which one of the following characters
A. Possess bony skeleton
B. Possess a solid single stranded central nervous system
C. Have gill slits at some stage
D. Lay eggs and guard them till they hatch
Explanation:
59. Retrogressive metamorphosis is found in
A. Cephalochordata
B. Urochordata
C. Fishes
D. Amphibia
Explanation:
60. Which one is distinct character of chordates?
A. Chorda dorsalis
B. Cephalization
C. Claws
D. Pharyngostomy
Explanation:
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