Q: Fact 1: Fish have a circulatory system with a two-chambered heart. Fact 2: Mammals have a four-chambered heart. Given the two facts above, how many sections does a fish heart have?

I. ovum;
II. fat;
III. four;
IV. p53;
V. two;
VI. cut;
VII. bone;
VIII. stem;
A:
V.