AP BIOLOGY

Detailed explanation-1: -Most snakes only have one functioning lung, and do not require the exchange of respiratory gasses to live. They also breathe by contracting muscles between their ribs.

Detailed explanation-2: -Explain – I will then explain that since the body of a snake is long and thin, the organs must also be long and thin. Because the available space is limited, some organs have been reduced in size, or even eliminated. Thus, most snakes have one large right lung and one very small left lung.

Detailed explanation-3: -The reptilt that has only one lung is snake.

Detailed explanation-4: -Snakes have a unique respiratory tract. Most snakes have only one functional, simple lung (usually the right lung; the left one is reduced in size or completely absent).

Detailed explanation-5: -Snakes only have one functioning lung, the other lung (normally the left), shrivels and is known as a vestigial lung. The lung of the snake is very long and at the very end, it becomes a simple air sac. Air is exchanged in lung tissue and stored in the air sac.