The cardiac cycle is the performance of the human heart from the ending of one heartbeat to the beginning of the next heartbeat.It consists of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, following a period of robust contraction and pumping of blood, dubbed systole.
Answer: four federal agencies
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Convergent plate boundaries where deepest earthquakes occur
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The greatest concentration of public in the US is in Texas.
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aid is most benefication lead to low income countries because of such country use 8 receive for the provide education and all the health care for citizen which which will improve economic growth in the long run