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Class Mammalia

Which of the ...

Question

Which of the following is not a character common to all chordates?

A

gill slits

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B

notochord

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C

dorsal hollow nervous system

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D

hair

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Solution

The correct option is D
hair

The primary chordate characteristics include notochord, dorsal hollow nerve cord, paired pharyngeal gill slits and post-anal tail. The presence of hair is a characteristic feature of mammals.

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(d) Notochord is absent.
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Which of the following is not a character common to all chordates?

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