The Current Profile of the Sexual Activity of U

question 77

Multiple Choice

The current profile of the sexual activity of U.S.adolescents reveals that 58 percent of ________-graders had reported having had sexual intercourse.

• A)ninth
• B)tenth
• C)eleventh
• D)twelfth

---

Definitions:

Blastocyst

An early stage of embryonic development consisting of a sphere made up of an outer layer of cells, a fluid-filled cavity, and a cluster of cells inside (the inner cell mass) from which the embryo develops.

Fallopian Tubes

A pair of narrow tubes that transport eggs from the ovaries to the uterus, playing a crucial role in the process of fertilization.

Morula

An early stage in the embryonic development that resembles a mulberry, formed from the division of a zygote.

Chlamydia

A common bacterial STI caused by bacterium Chlamydia trachomatis that can lead to PID in women.