Asexual reproduction results in less diversity among offspring. Sexual reproduction causes genetic variation because the sperm and egg that are produced contain different combinations of genes than the parent organisms. however, asexual offspring are copies of the parents.
<h3><em>The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells.</em></h3>
This is because our genetic makeup may be closely similar to one another, an individuals DNA sequence is unique only to the individual much like ones fingerprints.
