Which among the following is incorrect about Cyclostomata?(a) Their vertebral column is made of cartilage(b) Lamprey and hagfish are examples of this class(c) Their digestive system is complete with stomach, food pipe and intestines(d) Their circulatory system is closed with a 2 chambered heartThe question was posed to me during an interview.I'm obligated to ask this question of Classification of Animal Kingdom into Different Phylum-2 in portion Animal Kingdom of Biology – Class 11

Which among the following is incorrect about Cyclostomata?(a) Their ve

1.	Which among the following is incorrect about Cyclostomata?(a) Their vertebral column is made of cartilage(b) Lamprey and hagfish are examples of this class(c) Their digestive system is complete with stomach, food pipe and intestines(d) Their circulatory system is closed with a 2 chambered heartThe question was posed to me during an interview.I'm obligated to ask this question of Classification of Animal Kingdom into Different Phylum-2 in portion Animal Kingdom of Biology – Class 11
Answer» Correct answer is (c) Their digestive SYSTEM is COMPLETE with stomach, food pipe and intestines Explanation: Vertebral COLUMN is made of CARTILAGE in Cyclostomata. They don’t have a stomach. Their circulatory system is closed with a 2 chambered heart. Lamprey and hagfish are examples of this class.

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