Question

1

2 5000000-0
Why do capillaries need to be thin walled?
so only a few nutrients can pass through
so only a small amount of blood can flow through
so they can go through the small spaces within the body
so the exchange of gases and nutrients can happen
Mark this and return
JE

Answer 1

Capillaries need to be thin-walled for efficient exchange of gases and nutrients.

Step-by-step explanation:

Capillaries need to be thin-walled because it allows for the exchange of gases and nutrients to occur efficiently. The thin walls of capillaries allow for substances to diffuse across them easily, such as oxygen and carbon dioxide exchanging in the lungs and nutrients passing from the bloodstream to the surrounding tissues.

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