Q. Epithelium is only two cell thick which facilitates process of

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Q. Mechanical process which consists of two phases inspiration and expiration is called

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Q. Complex cartilaginous structure present at upper end of trachea is called

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Q. Oxygen combines with hemoglobin in blood and form

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Q. Opening of larynx is called

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Q. When exchange of gases take place in lungs, it is called

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Q. Respiration in fish is done by help of paired

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Q. In rigorous exercises, fatigue results due to

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Q. Respiration is a/an

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Q. Tissue respiration is also referred as

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Q. Breathing occurs due to

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Q. Scientifically, breathing is a/an

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Q. Depending upon how long a plant lives, the division can be based on

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Q. Specialized shoot bearing the reproductive organs in flowering plants is called as

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Q. Flowering plants having rhizomes do not include

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Q. Aphids feed on plant juices through their

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Q. Food substances like starch can be stored in

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Q. The higher animals have special organs for exchange of gases as their skin is

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Q. The amount of air changes as there are changes in

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Q. After the formation of hemoglobin carbon dioxide move from blood into

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