Multiple Choice
What is the primary advantage of having a large surface area in the lungs?
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40. Circulatory System
Gas Exchange
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Which organ system is primarily responsible for bringing oxygen into the body and eliminating carbon dioxide and water?
A
Respiratory system
B
Nervous system
C
Digestive system
D
Circulatory system
Verified step by step guidance1
Step 1: Begin by identifying the primary function described in the problem: bringing oxygen into the body and eliminating carbon dioxide and water. This process is essential for gas exchange, which supports cellular respiration.
Step 2: Recall the organ systems listed in the options and their primary functions. For example:
- Respiratory system: Responsible for gas exchange (oxygen intake and carbon dioxide elimination).
- Nervous system: Coordinates body activities and responses.
- Digestive system: Breaks down food and absorbs nutrients.
- Circulatory system: Transports nutrients, gases, and waste products throughout the body.
Step 3: Match the described function (oxygen intake and carbon dioxide elimination) to the correct organ system. Consider the role of the lungs and airways in facilitating gas exchange.
Step 4: Eliminate the incorrect options by comparing their primary functions to the described process. For instance, the nervous system, digestive system, and circulatory system do not directly perform gas exchange.
Step 5: Conclude that the respiratory system is the organ system primarily responsible for the described function, as it includes structures like the lungs, trachea, and diaphragm that facilitate breathing and gas exchange.
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