Final answer:
The left ventricle projects its volume against systemic resistance. It must generate a great amount of pressure to overcome the high resistance in the systemic circuit, while the right ventricle does not need to generate as much pressure.
Step-by-step explanation:
The left ventricle projects its volume against systemic resistance in the body. The left ventricle must generate a great amount of pressure to overcome the high resistance in the systemic circuit, as it pumps blood into the long systemic circuit. On the other hand, the right ventricle does not need to generate as much pressure because the pulmonary circuit is shorter and provides less resistance.