<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.
Answer:
The best and most correct answer among the choices provided by the question is the fourth choice. Sociologists study the link between depression and poor nutrition. I hope my answer has come to your help. God bless and have a nice day ahead!
Answer and Explanation:
The exact time interval between the two different events is the time interval that is measured or calculated by an observer whose position is at rest comparative to the events and watch them taking place at that particular place. The beginning includes the start of the run to first base in the event whereas, the finish of the run to the first a base is the end of the event.
The runner watches the end and the beginning of the event that occurred next to him and hence, the event took place at the same place where the runner was present. The runner is considered at rest relative to his clock.
The exact length of an object is considered to be the length that can be measured by an observer who is believed to be at rest concerning the object.
The catcher is supposed to be at rest relative to the distance between home plate and first base.
The Magna Carta served as a model for the US constitution.
Demographers are scientists who study human populations. They tend to map and understand the dynamics of population, which includes birth, death, and migration. All of these affects population and must be studied by demographers. They may study the population change within a country or the interrelationship of countries' populations, which is mostly necessary in studying migration. However, they could also take specialization. For example, they could study only parts of the population like workers' social pattern. Demographers mainly use statistics in mapping their data.
