<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.
The correct answer is panicky.
The author himself says that there were a lot of things around him that made him feel nervous, or the exact word he used is - panicky. I don't know the context, however, based on this excerpt it seems that he went through something dangerous or tragic that made him feel panicky about many things around him.
Lebanon, I hope this helps :)
Answer: deception;debriefed
Explanation:
Deception during the research occurs when the participants are not given the fully information about the research that they are participating on or they are given the incorrect information about what the research is about .
This is usually done in order to receive bias free answers because when people know what the research is about they may sometimes answer in a way that will give a particular response that they feel is expected theirfore not being completely true.
A debriefing is now done to establish how people felt about the actual research or research question after they have already participated in a research in order to receive a feedback report . This is where everything in now explained to them properly and accurately.
