Which Statement About the Mechanics of Ventilation in Humans Is

question 223

Multiple Choice

Which statement about the mechanics of ventilation in humans is true?

• A) If the pleural cavity is punctured, the lung will overinflate.
• B) As the diaphragm contracts, air is expelled from the respiratory system.
• C) As the diaphragm contracts, pressure within the pleural cavity increases.
• D) Less energy is expended during the exhalation phase than during the inhalation phase.
• E) There is a slight positive pressure within the pleural cavity between breaths.

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Definitions:

Green Algae

A large and diverse group of photosynthetic, often aquatic plant-like organisms, important in the ecological balance of many freshwater and marine environments.

Charophytes

Group of green algae closely related to land plants.

Molecular Data

Information obtained at the molecular level, such as DNA sequences, that is used in various fields including genetics and systematics.

Archaeplastids

A group in the eukaryotic tree of life that includes red algae, green algae, and land plants, characterized by the presence of plastids with a double membrane.