Out of the following given choices;
a. they increase the amount of energy transferred from the
lungs to the blood
b. they increase the flexibility of the lungs as they expand
during inhalation
c. they increase the volume of the lungs, allowing more
oxygen to be inhaled
d. they increase the surface area of the lungs, allowing the
efficient gas exchange
The answer is D. Due to their microscopic nature, they are numerous in the lungs and are also circular-shaped so as to increase the surface area for gaseous exchange.
Other characteristics of alveoli that increase gas exchange are that they thinned-walled (with only a layer of cells) and moist.
Answer:
I believe the warmer the heat is the molecules will speed up and the cooler the molecules are the slower it'll be
Answer:
Check for chloroplasts for a plant cell and look for mitochondria's for an animal cell
true, certain bacteria can survive in places like the dead sea and other high pH climates
