Which Statement Is the Best Explanation of "Immune Infertility

question 212

Multiple Choice

Which statement is the best explanation of "immune infertility"?

• A) The sperm contains hyaluronidase and other hydrolytic enzymes that destroy the female ovum.
• B) Once the egg and the sperm join, an antigen-antibody reaction occurs, which kills the sperm.
• C) An allergy to the female egg results in female infertility.
• D) Antigen-antibody reaction in males causes destruction of sperm, resulting in infertility.

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Definitions:

Variable Cost

Costs that change in proportion to the level of production or business activity, such as materials and labor.

Variable Cost

Costs that vary in direct proportion to changes in levels of production or business activity, such as materials and labor.

Fixed Cost

A cost that does not change with the volume of sales.

Fixed Costs

Expenses that do not change in proportion to the activity of a business, such as rent, salaries, and loan payments.