Drainage Channels in the Dry Mountains Usually Have A(n)_______ Profile

question 73

Multiple Choice

Drainage channels in the dry mountains usually have a(n) _______ profile.

• A) convex
• B) U- shaped
• C) S- shaped
• D) V- shaped
• E) smooth

---

Definitions:

Menstrual Flow

The shedding of the uterine lining (endometrium) that occurs in the absence of pregnancy, resulting in bleeding through the vagina.

Estrogen

A group of steroid hormones that play an essential role in regulating female reproductive physiology, including the menstrual cycle and reproductive system development.

Progesterone

A hormone produced by the corpus luteum, known as a steroid, that encourages the uterus to get ready for pregnancy.

Umbilical Cord

A flexible cord-like structure containing blood vessels and attaching a mammal fetus to the placenta during gestation.