Box Nails Are Different from Common Nails Because of Their

question 2

Multiple Choice

Box nails are different from common nails because of their ____.

• A) smaller head diameter
• B) smaller shank diameter
• C) shorter length
• D) all the above

---

Definitions:

Biological Clock

An innate mechanism in living organisms that controls the timing of behaviors and physiological processes.

Circadian Clock

An internal biological clock regulating the sleep-wake cycle and other physiological processes on roughly a 24-hour cycle.

Internal Clock

An innate mechanism that regulates physiological and behavioral functions in a roughly 24-hour cycle, also known as the circadian rhythm.

Pineal Gland

A small endocrine gland in the brain, secreting melatonin and involved in regulating sleep patterns.