Write the Word or Phrase That Best Completes Each Statement $$\frac { e ^ { x } - e ^ { - x } } { 2 } = - 1$$

question 10

Essay

Write the word or phrase that best completes each statement or answers the question.
- $$\frac { e ^ { x } - e ^ { - x } } { 2 } = - 1$$

---

Definitions:

Ghrelin

A hormone produced by the stomach that stimulates appetite and growth hormone release.

Insulin

A hormone produced by the pancreas that regulates the amount of glucose in the blood by facilitating its uptake into cells.

Hunger

A physical sensation and a critical motivational state for organisms, indicating the need for food intake.

Sexual Arousal

A physiological and psychological state of heightened excitement and readiness for sexual activity.