Which of the following are true statements concerning the de…
Which of the following are true statements concerning the development of the circulatory system?o I.Heart development is completed by about 32 weeks of gestation.o II.Heart development, other than growth, is complete when valve formation is complete.o III.Angiogenic clusters supply nutrition in the earliest stages of the growing embryo.o IV.The right-side myocardial fibers begin contracting before the left side to provide blood flow to the lungs.o V.At about 3 weeks, two heart tubes fuse into what will become the basic structure of the four-chamber heart.