Multiple Choice
Mammalian lungs
A) are basically a dense capillary network encased by a thin epithelial layer.
B) provide a small diffusion distance between air and blood at the exchange surface.
C) are a mass of branching ducts and cupped-shaped chambers.
D) have gas exchange in alveolar ducts.
E) All of the answers are correct.
Correct Answer:
Verified
Correct Answer:
Verified
Q30: In aquatic invertebrates<br>A) ventilation is always achieved
Q31: Amphibians<br>A) use only their gills for gas
Q32: In water animals, the direction in which
Q33: Air and water have very different properties
Q34: The rate of diffusion of a gas
Q36: Animals use O<sub>2</sub> and CO<sub>2</sub> (pH) levels
Q37: Many small organisms meet their O<sub>2</sub> requirements
Q38: In general, you would expect to find
Q39: An unknown fish is analysed and found
Q40: Countercurrent gas exchange<br>A) is characteristic of terrestrial