Exchange of wastes, nutrients, gases, and hormones between the blood and the body cells occurs in the ____________.
A
Arteries
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B
Arterioles
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C
Capillaries
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D
Veins
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Solution
The correct option is C Capillaries Capillaries are the smallest blood vessels that branch out from arterioles to form networks around body cells.
The wall of capillaries is single cell thick. The exchange of materials like wastes, nutrients, gases, and hormones between the blood and the surrounding
cells take place across this thin wall.