The period of time that begins with contraction of the atria and ends with ventricular relaxation is known as the cardiac cycle. The period of contraction that the heart undergoes while it pumps blood into circulation is called systole.
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The answer is b.free edge
You need to come up with a time you want to start and finish. You should change your diet and make sure you get plenty of sleep. If you don’t sleep enough it could lead to heart issues.
This is an example where technology is a benefit because it provides an accurate answer at a much faster rate than manually measuring.
Answer;
C. deaths of parents.
Explanation;
HIV/AIDS, like all communicable diseases, is linked to poverty. The complex relationship between poverty and HIV/AIDS is central to an understanding of the impact of the epidemic on rural livelihoods.
The relationship is bi-directional in that poverty is a key factor in transmission and HIV/AIDS can impoverish people in such a way as to intensify the epidemic itself.
Poverty is a key transmission factor, It may take different forms, for instance; Poverty created by war, civil unrest, social disruption and refugees. High levels of abuse to young girls and the breakdown of traditional sexual beliefs are associated with military destabilization, refugee crisis and civil war.