The secretions produced by the prostate gland

A) are acidic.
B) contain fructose.
C) contain mucus.
D) constitute about 30% of the semen.
E) constitute about 90% of the semen.

The Hardy-Weinberg equilibrium requires

A) no new mutations.
B) no migration of alleles into or out of the population.
C) a large population size.
D) a sexually reproducing population that mates randomly.
E) All of the answer choices are conditions that must be met for a population to be in Hardy-Weinberg equilibrium.

An abnormal color of the urine can be caused by eating certain foods, such as beets or carrots; when this occurs, it is nonpathological.

Which statement about Earth's biomes is FALSE?

A) Biomes near the poles have less rainfall than biomes on the equator.
B) Altitude can result in biomes that are not characteristic for a particular latitude.
C) Deserts have less rainfall due to their distance from the ocean.
D) Rainforests occur in both the Northern and Southern Hemisphere.
E) Deserts occur in both the Northern and Southern Hemisphere.

External jugular vein

A) Drains blood from the arm
B) Superficial vein of the head and neck
C) The posterior intercostal veins join this vein on the right side of the body
D) Deep vein that drains blood from the cranial vault
E) Formed by the union of the internal jugular and the subclavian veins