The pulmonary capillaries _____
a. are closely associated with alveoli but do not fuse with them
b. fuse with the alveoli to facilitate gas exchange
c. bring oxygenated blood back to the heart
d. bring deoxygenated blood back to the heart
e. fuse with the alveoli to facilitate gas exchange, and bring oxygenated blood back to the heart
ANSWER: e
You might also like to view...
Which of the following statements about freshwater bony fish is false?
A. They drink water to replenish water supplies. B. Chloride cells in the gills actively pump chloride ions into the body. C. They are osmoregulators. D. They tend to gain water through osmosis. E. They maintain body fluid solute concentrations that are higher than that of the surrounding water.
Molecules such as H-H and O=O are held together by ____
a. polar covalent bonds b. van der Waals forces c. ionic bonds d. hydrogen bonds e. nonpolar covalent bonds
What do gametes, spores, and the gametophyte generation have in common?
a. They are all diploid. b. They are all haploid. c. They are present in vascular plants only. d. They are all produced by meiosis. e. They are all triploid.
Which of the following types of plants would most likely be found in the Mojave Desert?
A) C4 B) C3 C) CAM D) CAM, C3, and C4 would all be equally likely in this environment.