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vladimir1956 [14]
3 years ago
12

Pls help I will give brainlist

Biology
2 answers:
Nataly [62]3 years ago
8 0

Answer:

* they give the lungs a really big surface area.

* they have moist, thin walls (just one cell thick)

* they have a lot of tiny blood vessels called capillaries.

<h2><u><em>hope this helps u if yes so please mark me as brainiest</em></u></h2>

LuckyWell [14K]3 years ago
4 0
They give lungs a big surface area

Moist, thin walls (one thick wall)

They have a lot of tiny blood vessels
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