Question

write down any four features of respiratory surface which make it suitable for exchange of gases​

Answer 1

The alveoli are adapted to make gas exchange in lungs happen easily and efficiently. ... 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

Answer 2

they are

1.moist surface

2.large surface area

3.thin walled

4.rich in blood supply