Describe the negative feedback loop that integrates the heart and the lungs into regulation of oxygen and carbon dioxide. Include both an increase in carbon dioxide AND a decrease in carbon dioxide. Include how the function of the heart and lungs change. Start with "When a person performs exercise, their muscle cells are using more oxygen and producing more carbon dioxide through cellular respiration. As carbon dioxide levels increase in the body".

Mike was adopted, and his biological family history is unknown. although he is healthy, he would like some understanding of his genetic makeup, including potential health risks and genes that he could pass on to his children. mike has heard about commercial laboratories that can compare segments of your dna to those of people with common hereditary diseases in order to give you some idea of how susceptible you are to the diseases. the results of these types of tests are highly inconclusive. if mike's dna showed that he shares similarities in a segment of dna with people who have a given disease, his chances of developing that disease or passing it on to his children may be slightly elevated, but they are not 100 percent. these tests can cost more than $2,500 and are not covered by many insurance companies. do you think that mike should undergo the genetic tests? explain your answer. what are the potential pros and cons of having such tests done? describe how the availability of these genetic tests might affect the frequency of genetic diseases in individuals and populations.

Drag the correct tiles to the image. not all tiles will be used. the diagram is a schematic representation of the electron transport mechanism in mitochondria. label the diagram to complete the model.

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?