The alveolar membrane- is where gas exchange between the blood and the atmosphere takes place. The gas molecules must diffuse across the alveolar epithelium and the capillary endothelium. ... Thus, the alveolar surface (as well as the respiratory bronchioles) have no cilia or mucus layer.

Explanation:

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4 0

3 years ago

What's an example of a solution flour and water , sand and water ,salt and water

UNO [17]

QUICK ANSWER

A combination of sand, salt and water is an example of a heterogeneous mixture. A heterogeneous mixture is a type of combination where the constituents of the mixture are not uniform, and there are two or more distinctive phases of separation.

4 0

3 years ago

For a planet orbiting the sun, rprp is the distance from the sun to the perihelion and rara is the distance from the sun to the

Talja [164]

The answer is D. 145

3 0

2 years ago

Kim is standing at the bus stop. Her weight of 550 Newtons is a downward force caused by gravity. What is the amount of force th

Rom4ik [11]

Answer:

Explanation:

i just took the quiz on k12 and got it right