Which Numbered Layer in This Photograph Represents the Youngest Layer

question 69

Multiple Choice

Which numbered layer in this photograph represents the youngest layer?

• A) 1
• B) 2
• C) 3
• D) 4

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Definitions:

Naturally Occurring Hormone

A hormone that is produced and found naturally within an organism, without artificial enhancement or modification.

Non-prescription Medication

Non-prescription Medication refers to drugs and treatments that can be purchased without a doctor's prescription, often used for minor ailments or conditions.

Melatonin

A hormone produced by the pineal gland in the brain, involved in regulating the sleep-wake cycle.

Non-rapid Eye Movement Sleep

A type of sleep that includes stages 1-3, characterized by a gradual decrease in heart rate, breathing rate, and muscle activity.