Question

what are the characteristics of a respiratory surface

Answer 1

Answer:

thin walls. a moist inner surface. a huge combined surface area

Explanation:

Answer 2

Answer:

The Characteristics of a Respiratory Surface are :

1.   thin walls  ,

2.  a moist inner surface   ,

3.  a huge combined surface area  , and

4.  a rich blood supply- each alveolus is sounded by capillaries.