During exhalation, the pressure inside the lungs
A) initially is higher than atmospheric pressure, but drops as air leaves the body.
B) must be maintained higher than atmospheric pressure.
C) must be maintained lower than atmospheric pressure.
D) gradually elevates as air enters the lungs.
E) rapidly elevates.
A
You might also like to view...
What would your predict about
the reaction:
A. It has a change in free energy that is greater than 0.
B. It yields energy.
C. It can be used to drive endergonic reactions.
D. It has a change in free energy that is less than 0.
E. It has a change in free energy that is greater than 0, and hence can be used to drive endergonic reactions.
In the process of peristalsis:a
waves of muscular contractions force food down the digestive tract. b. chemical digestion of food takes place in the digestive tract. c. food is discharged from the bodies of unicellular animals. d. digestion occurs intracellularly within food vacuoles. e. digestion of food takes place outside the body of an animal.
The signal molecule produced in quorum sensing is
a. A counterstain. b. An inducer. c. Light. d. A simple stain. e. An endospore.
The uniformity in the way nerve cells function within the animal kingdom
A) indicates that the peripheral nervous system (PNS) evolved before the central nervous system (CNS). B) is evidence that the neuron was an early evolutionary adaptation. C) is proof of neurotransmitter efficiency. D) must have prevented the development of diversity.