Answer:
The blood picks up co2 and also waste from the tissue. So I am guessing that it is co2.
Hope this helps.
<span>Individuals suffering from clinical depression are more likely to suffer heart disease and heart attacks. One primary factor is that individuals who are depressed are less likely to engage in good self care strategies: they are more likely to drink and smoke, they are less likely to exercise, and they are less likely to take prescribed medications. Physically, the stress that is associated with depression may lead to plaque formation in the arteries.</span>
... from one physician to another that does not require consultation is called transfer of care
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