Q. In xylem vessel, the lignin is deposited in the form of

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Q. Sunflower is an example of

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Q. Function of a companion cell is to provide

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Q. In flowering plants, Sieve tubes are a characteristic of

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Q. Advantages of using pesticides include

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Q. Over a period of time, mosquitoes have developed resistance to

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Q. Miscarriages in women may be due to intake of

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Q. Physical, mental abnormalities and risks of cancer are increased due to

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Q. The disease AIDS stands for

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Q. Heroine is several times more powerful than

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Q. AIDS is caused due to

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Q. From the internal Nares, the air travels into the

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Q. Over-breathing is a symptom of

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Q. Human body gets rid of carbon dioxide through

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Q. In human adult, the kidney receives how many Liters of blood per minute to filter?

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Q. In humans, the sensitivity of respiratory diseases, eyes, and air passages is experienced due to

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Q. Common fat to cause heart attack is

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Q. Due to short distance between the lungs and the heart, the walls of right ventricle are

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Q. Artery leaving from the left ventricle of the heart is

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Q. Oxygen (O₂) and food substances are provided to the heart through

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