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Home Q & A Board Biology-Related Homework Help General Biology
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sophiegiu sophiegiu
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5 years ago
In humans, which blood vessels have valves?
A) arteries in the neck
B) arterioles
C) capillaries
D) veins
Textbook 
Campbell Biology: Concepts and Connections

Campbell Biology: Concepts and Connections


Edition: 8th
Authors:
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Slipknot_137Slipknot_137
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5 years ago
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sophiegiu Author
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5 years ago
Smart ... Thanks!
loki1345
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Yesterday
Good timing, thanks!
Alina01978
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2 hours ago
Helped a lot
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