2 years ago

Why do the walls of the capillaries and air sacs have to be thin

1 answer:

7 0

The alveoli are lined with mucus and are surrounded by a network of blood capillaries. They have very thin walls for gases to be absorbed through.Carbon dioxide diffuses from the blood into the alveoli.

You might be interested in

Suppose the Moon rotated on its axis just as quickly as Earth. Would we still always see the same side of the Moon from Earth? E

Snezhnost [94]

Answer:

Yes

Explanation:

Yes we would because the moon is spinning just as fast as earth, so we would see the same side.

8 0

2 years ago

A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its velocity is 4 m/s. But 6

damaskus [11]

Answer:

i think the answer is -7

Explanation:

4 - 46 = -42 -42\6 is -7 i dont know if its right

5 0

3 years ago

Only answer if you’re really good at science! no spams!

Readme [11.4K]

Lol it’s the first one :)

5 0

1 year ago

The major component of a cell membrane area. Proteins

salantis [7]

Answer:

A) phospholipids

Explanation:

5 0

2 years ago

What is the function of the ozone layer?A. To absorb carbon dioxide.B. To trap infrared radiation.C. To block UV radiation.D. To

ZanzabumX [31]

The correct answer is C. To block UV radiation. Ozone filters the majority of UV spectra, so it protects organisms from its effects.

8 0

1 year ago