Multiple Choice
Which of the following is the first link in the chain of infection?
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21. The Immune System
Introduction to Innate Immunity
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Which of the following organ systems is primarily responsible for transporting nutrients, gases, and waste products throughout the body?
A
Respiratory system
B
Digestive system
C
Circulatory system
D
Nervous system
Verified step by step guidance1
Begin by identifying the primary function of each organ system listed in the problem.
The respiratory system is responsible for gas exchange, primarily oxygen and carbon dioxide, between the body and the environment.
The digestive system is responsible for breaking down food into nutrients that can be absorbed and utilized by the body.
The nervous system is responsible for transmitting signals throughout the body to coordinate actions and responses.
The circulatory system, also known as the cardiovascular system, is primarily responsible for transporting nutrients, gases, and waste products throughout the body via blood vessels.
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