Which of the Following Is a True Statement

question 6

Multiple Choice

Which of the following is a true statement?

• A) All mammals have menstrual cycles.
• B) The endometrial lining is shed in menstrual cycles but reabsorbed in estrous cycles.
• C) Estrous cycles are more frequent than menstrual cycles.
• D) Estrous cycles are not controlled by hormones.
• E) Ovulation occurs before the endometrium thickens in estrous cycles.

---

Definitions:

Nitric Acid

A highly corrosive and toxic strong acid with the formula HNO3, used in the production of fertilizers, explosives, and in various nitration processes.

Formal Charges

The assignment of a charge to an atom within a molecule based on the assumption that electrons in chemical bonds are evenly distributed amongst atoms.

Lewis Structure

A diagram showing the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

Tert-Butyl Alcohol

An organic compound with the formula (CH3)3COH, used as a solvent and in the preparation of other compounds.