<span>The three systems interrelate for a complete function of the body. The respiratory and cardiovascular systems work together to perform the gas exchange function. Without gas exchange function, the cells would die, hence, it is crucial for these systems to work together.
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Through respiratory system, the oxygen enters the body and then it is transported as oxyhaemoglobin to the cells with the help of cardiovascular system. The cardiovascular system also performs the work to transport the waste product carbon dioxide to respiratory system, that evacuates it.
Hence, whithout respiratory system, the oxygen could not enter the body and it could not discharge the carbon dioxide waste. Without cardiovascular system, the oxygen and carbon dioxide could not travel the body.
The cardiovascular system relates with digestive system for an optimum heart rate. The digestive system produces nutrients and with help of cardiovascular system transports these nutrients where it is needed. The digestive toxins are also discharged from system with the help of cardiovascular system that transports them to kidneys.
Hence, the healthy equilibrium of human body is reached if all these systems work together in harmony.
Well i don't know the main parts but. From what I have learned about this a typical day would be "insert 2 facts". No, there could have been better ways than that to spread a new religion instead of forcing it on them.
Answer:
So they could go through to Asia. They didn't know how far the Americas were from Asia.
D. Laws or principles made by a society and its government.
Mary's behavior is an example of learned helplessness, that is a behaviour pattern of a subject that endures repeatedly aversive, violent or traumatic stimuli and becomes unable to escape or avoid them. The subject has a tendency to not accept escape or avoidance as an option in the future.