Question

Why are capillaries thin walled?​

Answer 1

Answer:

So as to allow exchange of gases......

Answer 2

Hey guys your answer is here...

A single capillary is so small that it allows only one blood cell to flow through it at a time. The capillary walls are also very small, only one cell thick. These thin walls easily allow water, oxygen, carbon dioxide, and other nutrient and waste substances to exchange between blood cells and the surrounding tissue.

pls mark as brainliest if helpful