Class 11 Biology Animal Kingdom Phylum-Chordata

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Which of the following groups of characters is present in all chordates at some stage in their life?

A
Mammary glands, hair, and gill slits
B
Notochord, gill slits, and dorsal tubular nervous system
C
Notochord, scales, and dorsal tubular nervous system
D
Gill slits, vertebral column, and notochord

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Class 11 Questions

Class 11

Biology Questions

Chapter

Animal Kingdom

Subtopic

Phylum-Chordata

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