During the cardiac cycle,

A) the right atrium and the right ventricle contract simultaneously.
B) the two atria relax while the two ventricles contract.
C) the left atrium contracts before the right atrium.
D) all four chambers of the heart contract at the same time.
E) all four chambers of the heart are in systole at the same time.

George has to have his gallbladder removed. His friend told him he can no longer eat fats because he will no longer produce bile. Is this an accurate description of George's future diet?

A) No; the gallbladder only stores the bile that is produced by the liver.
B) No; bile is involved in protein digestion only.
C) Yes; the gallbladder is the organ that produces bile.
D) Yes; bile must first be stored in the gallbladder before it is functional.

When an ocean current brings cold, nutrient-rich water to the surface, it is called a(n)

A) tide.
B) lake effect.
C) upwelling.
D) monsoon.
E) overturn.

In which of the following would you detect a weak pulse?

A) Hypertension
B) Hemorrhagic shock
C) Fluid excess
D) Increased stroke volume
E) A healthy young person

The active transport of substances into the filtrate is called tubular ________.

A) filtration
B) reabsorption
C) secretion
D) elimination
E) excretion

The key difference between Great Britain's labor relations system and that of Ireland is that Ireland includes peak-level negotiations on social and economic issues.