During expiration, the diaphragm will relax and become

As compared to breathing, the processes involved in the respiration includes

The box-like structure which is present between trachea and pharynx is called

The bacterium, Streptococcus pneumonia, causes the respiratory disorder known as

Which of the following reduces the oxygen-carrying capacity of hemoglobin?

The amount of oxygen (O₂) present in expired air is

The kind of bronchitis that causes no permanent damage to the lungs and lasts for two weeks is called

Lenticels are pores present in the layer of

During inhalation, the ribs muscles contract and

Pores in the layer of bark are called

The amount of nitrogen present in expired and inspired air is

In plants, the certain pores in the bark are called

The larynx is also called a

Cuticle responsible for gaseous exchange is present

The flap of tissues which guards the glottis is classified as

The chronic inflammation lasts for three months to

The thick muscular structure which is present below the pair of lungs is called

A human breath per minute is

The percentage of respiratory disorders is high in Pakistan due to more concentration of air

The kind of bronchitis in which inflammation develops in bronchi is called

The main goal in the prevention of lung cancer is eliminating

In plants, where self-pollination is unlikely due to greater distance between male and female parts includes

How many lobes left lung has?

According to world health organization (WHO), in developing countries smoking rate is rising

The fibrous bands that are stretched across the voice box are called

Loss of lung tissue is caused by

A muscular package, common to both food and air is

As compared to respiration, the processes involved in the breathing includes

The world No Tobacco Day is celebrated on

The nasal cavity opens outside of the kind of openings that are called