A) Reptiles
B) Cyclostomates
C) Birds
D) Mammals
Correct Answer: B
Solution :
Pancreas is absent in cyclostomates, a class of Agnatha. The pancreas derived from the endoderm of embryo. It lies inferior to the stomach in a bend of the duodenum. It is both as exocrine and endocrine gland.You need to login to perform this action.
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