During exercise, systemic blood flow (cardiac output; liters/min) may be four times higher than at rest. Surprisingly, pulmonary blood flow is the same as systemic blood flow, but pulmonary resistance to flow is six times lower than the systemic resistance to flow. Use the relationship MAP = (cardiac output)*(resistance) to show that mean pulmonary pressure is six times less than mean systemic pressure.

The scientific method is a series of steps followed by scientific investigators to answer specific questions about the natural world. it involves making observations, formulating a hypothesis, and conducting scientific experiments.the steps of the scientific method are •observation-the first step of the scientific method involves making an observation about something that interests you•question-once you've made your observation, you must formulate a question about what you have observed. •hypothesis-once you've made your observation, you must formulate a question about what you have observed. •experiment-once you've developed a hypothesis, you must design and conduct an experiment that will test it.•results-the results are where you report what happened in the experiment. •conclusion-the final step of the scientific method is developing a conclusion.i hope that this you : )