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Multiple Choice
Which of the following systems is correctly paired with one of its parts?
A
Circulatory system; lung
B
Respiratory system; heart
C
Integumentary system; kidneys
D
Excretory system; intestine
E
Endocrine system; thyroid gland
Verified step by step guidance
1
Identify the main function of each system mentioned in the options to understand their components.
The circulatory system is responsible for transporting blood and nutrients throughout the body. Its main components include the heart, blood, and blood vessels, not the lung.
The respiratory system is responsible for gas exchange, primarily involving the lungs and airways, not the heart.
The integumentary system includes the skin, hair, and nails, serving as a protective barrier. It does not include the kidneys.
The excretory system is responsible for removing waste from the body, primarily involving the kidneys, ureters, bladder, and urethra, not the intestine.
The endocrine system is responsible for hormone production and regulation, and includes glands such as the thyroid gland, which is correctly paired in the given options.