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Compare the composition of inspired and expired air

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Write an account on bad effects of smoking.

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In the lungs, the oxygen passes from the alveoli to the blood. What features make this process rapid?

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What is the normal rate of breathing in humans?

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How the rate of breathing is controlled in humans?

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Differentiate between cellular respiration and breathing.

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Describe in detail the respiratory system/gaseous exchange in humans

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What part of the blood transports oxygen from lungs to the cells of the body?

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Write an account on pneumonia and asthma.

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In which form Organisms need energy?

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What is the stimulus of breathing?

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Differentiate between respiration and breathing.

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Name some important respiratory disorders common in Pakistan?

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The breathing becomes rapid and deep after exercise. Why?

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What is speech? How the process of speech occurs?

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How mucus forms in trachea and bronchi, and what is the function of mucus?

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Write an account on bronchitis.

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In the lungs, the oxygen passes from the alveoli to the blood. What features make this process rapid?

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Write an account on emphysema.

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Write an account on lung cancer.

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