Which of the following vertebrates has the most simple structured heart by Sunday | Mar 22 | Biology JAMB | 0 comments A. reptile B. fish C. mammal D. Amphibian Correct Answer: Option B – fish Users Also Read These:Which of the following describes the sequence of…JSS3 Business Studies Lesson Note on Setting Simple…Which of the following adapts the aorta to the high…In which of the following vertebrates does the skin…Which blood cell are involved in the immune response…