Question

Very thin and fragile

red blood cells pass through in single file
exchange of oxygen and carbon dioxide happens here

The three phrases above describe the _______________ in our circulatory system. A) veins B) arteries C) capillaries D) blood plasma

Answer 1

C) capillaries

Step-by-step explanation:

Reasons why that's your answer -

Very thin and fragile - yes, Capillaries are very thin and fragile

Red blood cells pass through in single file - yes, This is also true

Exchange of oxygen and carbon dioxide happens here - yes, this is true, in Arteries and Veins, this doesn't happen, but it does in Capillaries.

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