Explain how respiration take place in penguins and squirrels
Answers
Penguins don't have gills like fish, but lungs and have to surface regularly for breathing. But their lungs are not filled with oxygen in the same way as ours. ... The air, inhaled before diving, is in those air sacs, and not in the lungs.
The only time penguins are airborn is when they leap out of the water. Penguins will often do this to get a gulp of air before diving back down for fish. Penguins cannot breathe underwater, though they are able to hold their breath for a long time.
squirrels-
An exchange of oxygen and carbon dioxide takes place in the alveoli, small structures within the lungs. The carbon dioxide, a waste gas, is exhaled and the cycle begins again with the next breath. The diaphragm is a dome-shaped muscle below the lungs that controls breathing.