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Multiple Choice
Which body system is primarily responsible for removing metabolic waste products from the body?
A
Endocrine system
B
Immune system
C
Respiratory system
D
Excretory system
Verified step by step guidance
1
Step 1: Understand the role of metabolic waste removal in the body. Metabolic waste products, such as urea, carbon dioxide, and excess salts, are generated during cellular processes and must be eliminated to maintain homeostasis.
Step 2: Review the primary function of the excretory system. The excretory system is responsible for filtering and removing waste products from the blood and expelling them from the body. Key organs include the kidneys, ureters, bladder, and urethra.
Step 3: Compare the functions of the other systems listed in the problem. The endocrine system regulates hormones, the immune system defends against pathogens, and the respiratory system facilitates gas exchange (oxygen intake and carbon dioxide removal). While the respiratory system removes carbon dioxide, it is not primarily responsible for eliminating other metabolic wastes.
Step 4: Recognize that the excretory system is the correct answer because it encompasses the processes and organs dedicated to removing a wide range of metabolic waste products, including urea and excess salts, through urine production.
Step 5: Conclude that the excretory system is the body system primarily responsible for removing metabolic waste products, as it plays a central role in maintaining the body's chemical balance and overall health.