The Reason Why a Woman's Chance of Having Dizygotic Twins

question 23

Multiple Choice

The reason why a woman's chance of having dizygotic twins increases as the woman gets older is that

• A) it becomes easier for a sperm to penetrate the outer shell of the ovum.
• B) as the woman's ovaries decline in their ability to release eggs, her production of hormones increases to counter this decline.
• C) the lining of the uterus becomes more receptive to implantation of the blastocyst.
• D) her risk of miscarrying an early pregnancy significantly decreases.

---

Definitions:

Variable Expenses

Costs that change in proportion to the activity or volume of a business operation.

Contribution Margin

The difference between sales revenue and variable costs; used to cover fixed costs and generate profit.

Break-Even Point

The sales level at which the company does not make a profit or incur a loss, denoting a balance between revenue and costs.

Variable Manufacturing Costs

These costs vary directly with the level of production output and include expenses such as raw materials, direct labor, and certain overheads.