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Chapter 12 Patterns in Life: Diversity and Classification - Part 4

Which phylum is characterized by the presence of a notochord, dorsal nerve cord, and pharyngeal gill slits at some stage...

Type: MCQ • Marks: 1
Which phylum is characterized by the presence of a notochord, dorsal nerve cord, and pharyngeal gill slits at some stage of life?
Options
A. Chordata
B. Mollusca
C. Echinodermata
D. Arthropoda
Explanation
Phylum Chordata includes all vertebrate animals and primitive protochordates.
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Class 9th Science (MCQ)

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