Multiple Choice
Which flower part supports the anther in the stamen?
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1. Introduction to Anatomy & Physiology
Introduction to Organ Systems
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Which of the following organ systems is primarily responsible for defending the body against pathogens?
A
Digestive system
B
Respiratory system
C
Immune system
D
Nervous system
Verified step by step guidance1
Identify the primary function of each organ system listed in the problem.
Understand that the digestive system is mainly responsible for breaking down food and absorbing nutrients.
Recognize that the respiratory system is primarily involved in gas exchange, supplying oxygen to the blood and removing carbon dioxide.
Acknowledge that the nervous system is responsible for controlling and coordinating body activities by transmitting signals throughout the body.
Conclude that the immune system is the organ system primarily responsible for defending the body against pathogens, as it includes cells and mechanisms that identify and neutralize harmful invaders like bacteria and viruses.
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