Question
HLPaper 1A
How are villi, alveoli and nephrons similar?
A
They are internal organs.
B
They provide large surface areas for molecular exchange.
C
They secrete hormones.
D
They have a role in excretion.
How are villi, alveoli and nephrons similar?
They are internal organs.
They provide large surface areas for molecular exchange.
They secrete hormones.
They have a role in excretion.
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