There are more than one body systems at work to ensure that oxygen is sent to the cells in your body. which body systems interact to make this happen?

The respiratory and circulatory system are functioning together to provide oxygen to the cells that are important for cellular respiration. In this, the dissociation of glucose takes place so that energy is discharged in a form that the cells can utilize them.  

The end or by-product of the process is carbon dioxide, which is a waste product and has to eradicate from the system in order to inhibit any kind of damage to the cells. The respiratory system is accountable for moving oxygen inside the body and removing carbon dioxide out. This takes place when one inhales and exhales.  

While, the circulatory system is accountable for conducting nutrients and oxygen to the cells of the body, and wastes like carbon dioxide away from the body. This involves the cells of the blood, which are mediated via the blood vessels and the heart.  

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the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.