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Which among the following is not correct about Chondrichthytes?

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in Biology – Class 11 by (272k points)
Which among the following is not correct about Chondrichthytes?

(a) Chondrichthytes are jawless fishes

(b) They have stream-lined body

(c) Notochord is present throughout their life

(d) Their skin is covered with pointed denticles

This question was posed to me in an internship interview.

The origin of the question is Animal Kingdom in portion Animal Kingdom of Biology – Class 11

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Right option is (a) Chondrichthytes are jawless fishes

The explanation: Chondrichthytes have powerful jaws. They have stream-lined body. Notochord is present through-out their life. Their skin is covered with pointed denticles. Some chondrichthytes like Tripado have electric organs to paralyze the prey. Some of them also use poisonous sting to catch prey.

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