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 heart
Answer:C
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 heart