When vasodilation doubles the vessel diameter, what is the change in resistance?

A) Reduced by half
B) Doubles (twice the original value)
C) Reduced by 1/4th of the original value
D) Reduced to 1/16th of the original value

Why does inhaling deeply and slowly through the nose help to identify an odor?

A) More air containing the odor is brought into contact with the olfactory epithelium.
B) Impulses originate slowly in the olfactory epithelium.
C) The tissue needs more time in contact with the odor.
D) Threshold for odor detection is high.
E) Receptors in the olfactory epithelium are highly specific.

When blood pressure is greater than the blood colloid osmotic pressure, there is

A) a net movement of fluid into the capillary.
B) a net movement of fluid out of the capillary.
C) less lymph formed.
D) a decrease in the volume of the interstitial fluid.
E) a decreased likelihood of edema.

Regulation of development takes place mostly at the level of:

A) replication
B) transcription
C) posttranscription
D) translation
E) posttranslation

What is the potential benefit for a woman to choose a mate who has a different major histocompatibility complex than themselves?

A) increased immune response for their offspring
B) increased intellectual ability of the offspring
C) greater chance of fertility
D) greater chance for attracting a successful mate
E) increased chance of producing multiple offspring

In an EPSP (excitatory postsynaptic potential) , there is a

A) net movement of Na⁺ out of the cells.
B) net movement of Cl⁻ into the cells.
C) decrease in action potential amplitude.
D) local hyperpolarization.
E) local depolarization.