Why Is Olfaction an Ancient Sense

question 138

Multiple Choice

Why is olfaction an ancient sense?

• A) it was the first sense to develop in humans
• B) it was used solely to find potential mates
• C) it was used to detect predators
• D) it was used to find shelter
• E) it was the first sense to develop in amphibians

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Definitions:

Chemical Vapors

Gaseous forms of substances that are normally in the solid or liquid state at room temperature, often hazardous when inhaled.

Dilates Blood Vessels

The process by which blood vessels widen to increase blood flow, often as a result of relaxation of the vascular smooth muscles.

Nitrites

Chemical compounds that can act as vasodilators, used medically but also found in processed foods as preservatives.

Sex Enhancers

Products or substances used to increase sexual desire, performance, or pleasure.