Find the Center of the Ellipse Given by

question 10

Multiple Choice

Find the center of the ellipse given by

---

Definitions:

Sleep-Inducing Hormone

Melatonin, a hormone produced by the pineal gland that regulates sleep and wakefulness.

Melatonin

A chemical substance secreted by the pineal gland in reaction to lack of light, which controls the rhythm of sleeping and waking.

Serotonin

A neurotransmitter in the brain that plays key roles in stabilizing mood, feelings of well-being, and happiness.

Norepinephrine

A neurotransmitter and hormone involved in the body's stress response and in various cognitive and emotional functions.