The correct option is A ProtochordataProtochordates are closely related to #160;vertebrates. These lack some of the peculiar characteristics of chordates like ...

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Standard VI

Biology

Skeletal System

Cranium is ab...

Question

Cranium is absent in

Protochordata

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Vertebrata

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Craniata

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All of the above

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Solution

The correct option is A Protochordata
Protochordates are closely related to vertebrates. These lack some of the peculiar characteristics of chordates like the true skull, brain, skeleton. These are invertebrates.
So, the correct answer is option A.

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Cranium is absent in

The correct option is A ProtochordataProtochordates are closely related to vertebrates. These lack some of the peculiar characteristics of chordates like the true skull, brain, skeleton. These are invertebrates. So, the correct answer is option A.

The correct option is A Protochordata
Protochordates are closely related to vertebrates. These lack some of the peculiar characteristics of chordates like the true skull, brain, skeleton. These are invertebrates.
So, the correct answer is option A.