In All Batteries, Electricity Is Produced by

question 2

Multiple Choice

In all batteries, electricity is produced by

• A) light.
• B) heat.
• C) a chemical reaction.
• D) all of the above.

---

Definitions:

Glucocorticoids

A class of steroid hormones that play a vital role in the regulation of metabolism, inflammation, and immune response.

Melatonin

Hormone secreted by the pineal gland during the dark phase of the day-night cycle; influences daily and seasonal biorhythms.

Arousal

A physiological and psychological state of being awoken or of sense organs stimulated to a point of perception.

Suprachiasmatic Nucleus

A small region of the hypothalamus in the brain responsible for controlling circadian rhythms.