Answer: A. Speed
Explanation: Hope it Helps!
C. Duh. No one has to agree with a successful thesis.
A. Citric acid cycle (Krebs cycle)
Answer:
The function of the pleura is to allow optimal expansion and contraction of the lungs during breathing. The pleural fluid acts as a lubricant, allowing the parietal and visceral pleura to glide over each other friction free. This fluid is produced by the pleural layers themselves.