Which of the Following Is the Smallest Closed System

question 35

Multiple Choice

Which of the following is the smallest closed system?

• A) a cell
• B) an organism
• C) an ecosystem
• D) Earth
• E) the universe

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Definitions:

Primary Dysphagia

Difficulty swallowing due to problems inherent to the muscles or nerves involved in the swallowing process.

Vocal Dysphagia

Difficulty or discomfort in swallowing, affecting the voice or speech.

Swooshing Sound

An auditory phenomenon often related to the turbulent flow of blood in vessels, sometimes indicating a pathological condition.

Mitral Valve

One of the four valves in the heart, located between the left atrium and left ventricle; it helps regulate blood flow.