Simplify the Complex Fraction. ​ ​

question 105

Multiple Choice

Simplify the complex fraction. ​ ​

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Definitions:

Pharynx

A part of the throat situated behind the mouth and nasal cavity, crucial for both the respiratory and digestive systems.

Bronchus

A major air passage of the lungs that diverges from the windpipe, allowing the flow of air in and out.

Body Surface

The body surface refers to the outermost layer of an organism's body, including the skin in humans, which serves as a protective barrier against the environment.

Tracheal Tubes

A network of air tubes in insects and some terrestrial arthropods that allow for efficient gas exchange directly with body tissues.