During heavy exercise, the co2 in muscle may drop to 20 mm hg. considering the oxygen-hemoglobin dissociation curve below, what is the approximate percent o2 saturation of hemoglobin in venous blood returning from skeletal muscles during heavy exercise?

Explain the difference between the james-lange and the cannon-bard theories of emotion. answer - the cannon-bard theory proposes that emotions and arousal occur at the same time. the james-lange theory proposes the emotion is the result of arousal. schachter and singer's two-factor model proposes that arousal and cognition combine to create emotion.

How can people get cancer? what types of cancer are there? plz i’ll mark u brainliest

What is the proper way to determine that someone is unresponsive before administering cpr