Answers

2015-07-06T20:13:19+08:00
Capillaries-it is the smallest part of a blood vessels.

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2015-07-06T20:15:56+08:00
Veins and capillaries but the said is smaller cause these are the tips

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mmm...smalest?is it that two?the veins and capillaries?
nope i meant the capillaries
ah ok..now it's clear..