Urine retention is a greater problem for elderly men than for elderly women because men

A) can develop benign prostatic hyperplasia.
B) have larger bladders.
C) have weaker urinary sphincters.
D) have narrower ureters.
E) have fewer glomeruli.

What is the reaction in which two hydrogen atoms are removed from the substrate and transferred to NAD+ or FAD?

A) Dehydrogenation
B) Pyruvate
C) Decarboxylation
D) Glycolysis
E) Citric acid cycle

The phase directly after the G₂ phase in the cell cycle is ________.

A) the S phase
B) telophase
C) interphase
D) prophase
E) anaphase

Molecular oxygen attaches to the iron atoms in a hemoglobin molecule.

A male is neither homozygous nor heterozygous for his X-linked alleles; instead, he is always hemizygous.

Which of the following is a true statement?

A) The iris regulates the amount of light reaching the retina.
B) The rods are involved in black-and-white vision.
C) There is a blind spot where the optic nerve joins the retina.
D) The sclera is the outer coat of the eye.
E) All of the answer choices are true.