The alveoli of lungs are lined by:
Which one of the following mammalian cells are not capable of metabolising glucose to carbon dioxide aerobically?
The pharynx opens into the larynx by a slit-like aperture called ______.
Book lungs are respiratory organs of:
A book lung is a type of respiration organ used for atmospheric gas exchange that is found in many arachnids, such as scorpions and spiders.
Which of the following is not the function of the respiratory system?
The two organisms that breath only through their moist skin are:
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of:
Lungs have a large number of narrow tubes called ______.
The lungs are enclosed in a covering called ______.
Which of the following statement is true about Trachea, in a respiratory system?
The trachea serves as a passage for air, moistens and warms it while it passes into the lungs, and protects the respiratory surface from an accumulation of foreign particles.