Which of the following is the most common site for osteoarthritis?

Crude rates refer to:

a. A specific age group b. A specific gender c. The total population d. None of the above

Pick the correct statement as it relates to hemoglobin and acid-base buffering

a. Deoxygenated hemoglobin acts as an acid at the tissue level. b. Deoxygenated hemoglobin is a fairly strong base. c. Hemoglobin contributes more H+ in the face of increased histidine. d. In an alkaline environment, hemoglobin becomes an ineffective base.