Which statement is true about nonrandom mating?

A) Inbreeding is a form of nonrandom mating.
B) A tall man preferentially marrying a tall woman is an example of nonrandom mating.
C) Nonrandom mating violates the Hardy-Weinberg equilibrium.
D) The strongest male winning the opportunity to mate with his choice of females is an example of nonrandom mating.
E) All of the answer choices are true statements about nonrandom mating.

The semicircular canals are ____.

A) empty
B) filled with gas
C) filled with a liquid
D) small bones in the ear
E) passageways for nerves

Blood traveling from the intestines to the liver travels through the

A) pulmonary vein.
B) inferior vena cava.
C) superior vena cava.
D) coronary vessels.
E) hepatic portal vein.

In a plant, most water is transported vertically by being pushed to the top.

Food is prevented from entering the trachea by the

A) pharynx.
B) larynx.
C) epiglottis.
D) glottis.
E) sphincter muscle.

When introducing foreign DNA into vector DNA, which of the following is necessary to seal DNA into an opening created by the restriction enzyme?

A) DNA ligase
B) DNA polymerase
C) plasmids
D) RNA primase
E) DNA helicase

Which blood cells are usually the first to arrive at the site of an infection?

A) neutrophils
B) natural killer cells
C) red blood cells
D) interferons
E) monocytes

An embryo is protected from most mechanical impacts by the ____.

A) amniotic fluid
B) allantois
C) placenta
D) yolk sac
E) chorion

Which type of organism is characterized by having jointed appendages, ability to molt, and three sets of fused segments?

A) molluscs
B) echinoderms
C) arthropods
D) annelids
E) chordates