When you suddenly travel to high altitude, you notice an unusual breathing pattern when you are resting. for a while you stop breathing completely; then suddenly you start breathing rapidly for a short time; then you stop breathing again. this can go on and on in a cyclical pattern called cheyne- stokes breathing. think in terms of the changes in partial pressure gradients when you go to high altitudes and explain how the breathing control system could produce this breathing pattern.

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed

Select the correct answer from each drop-down menu proteins are