Multiple Choice
How do cilia function as a first-line defense to prevent infection?
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21. The Immune System
Introduction to First-Line Defenses
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Which of the following organ systems is primarily responsible for transporting nutrients, gases, and waste products throughout the body?
A
Circulatory system
B
Nervous system
C
Digestive system
D
Respiratory system
Verified step by step guidance1
Identify the primary function of each organ system listed in the options.
Understand that the circulatory system is responsible for transporting nutrients, gases, and waste products throughout the body.
Recognize that the nervous system is primarily responsible for transmitting signals between different parts of the body.
Acknowledge that the digestive system is mainly involved in breaking down food and absorbing nutrients.
Note that the respiratory system is primarily responsible for the exchange of gases, particularly oxygen and carbon dioxide, between the body and the environment.
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