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Taxonomic Hierarchy

Under subphyl...

Question

Under subphylum vertebrata how many classes are included?

A

Seven

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B

Two

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C

Four

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D

Three

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Solution

The correct option is A Seven
Introductory flowchart

Flowchart description

On the basis of jaw bearing animals the subphylum vertebrata is divided into

Gnathostomata - it comprises 6 classes (chondrichthyes, osteichthyes, amphibia, reptilia, aves and mammals).

Agnatha - it comprises a single class (cyclostomata).

Thus subphylum vertebrata comprises seven classes.

Final answer

(d) seven

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Taxonomic Hierarchy

Standard XII Biology

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