Most Birth-Control Pills Contain Both Progestin (Biologically Similar to Progesterone)

question 192

Multiple Choice

Most birth-control pills contain both progestin (biologically similar to progesterone) and estrogen. By taking a pill over consecutive days the amount of each hormone is maintained at a constant concentration in the circulating blood, inhibiting ovulation. Based on this information, what is the MOST likely mechanism for how birth-control pills affect ovulation?

• A)They inhibit growth of the uterine lining so implantation cannot occur.
• B)They inhibit growth of follicles so that immature eggs will be released.
• C)They inhibit maintenance of the corpus luteum after ovulation.
• D)They inhibit the release of the egg so that ovulation does not occur.

Explain the importance of photoperiodism in flowering and mechanisms of action in short-day plants.

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Definitions:

Domestic Partnerships

A legally recognized relationship between two individuals who live together and share a domestic life but are not married.

Decriminalizing Adultery

The process of removing criminal penalties for engaging in sexual relations outside one's marriage.

Sexual Diversity

The wide spectrum of sexual orientations and identities, including but not limited to heterosexuality, homosexuality, bisexuality, and asexuality.

Sexual Minorities

Individuals whose sexual orientation, gender identity, or sexual characteristics do not conform to the majority's norms within a society.