You have a red blood cell in the brain, track its path through the circulatory and respiratory system.

Red blood cells pick up oxygen in the lungs.

Explanation: Blood travels away from the heart and lungs through the arteries (ar-tuh-reez). Red blood cells drop off oxygen to the cells through tiny tubes called capillaries (cap-ill-air-ies). Blood then returns to the heart through the veins (vayns) and the cycle begins again.

b. read the phase at the intersection of any given temperature and pressure.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.