In metabolic and respiratory acidosis, what happens to the ratio of   [HCO3-]/[H2CO3]?  (10.6)

What effect did industrialization have on urban centers in Europe and the United States?

What is the biologically active form of calcium?  (H.6)

What European capital did the Soviets unsuccessfully blockade for nearly a year (June 1948-May 1949) in an effort to take total control of the city?

Imperial encounters and the prominence of scientific theories like Darwinism led to _______, a system of scientific racism dedicated to improving “superior” human genes and weeding out “inferior traits.”

Osmolality can be defined as a measure of the concentration of a solution based on the: (H.18.b.)

If metabolic conditions cause a change in the blood’s pH, which organ compensates?  (10.8)

What cagey, autocratic Georgian replaced Lenin as leader of Communist Russia and repeatedly purged the Party and the country of enemies, both real and perceived?

Why was the Battle of the Marne “the most strategically important battle of the entire war?”

Lipid deposits in the blood vessels can lead to a condition where there is hardening of the vessels.  What is this condition called? (E.21)