Which of the following is a plant excretory product?

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The movement of the whole organism to an external stimulus is termed

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After 30 minutes, the level of sugar solution in the figure will

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Deoxygenation blood flows into the right and left lungs through the

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Fibrinogen and prothrombin play important roles in the

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After 30 minutes, the level of sugar solution in the figure will

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The process by which water moves from X to Y through the semi-permeable membrane is called

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Which of the following can bring about the greatest increase in the rate of transpiration?

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In the living cells, insufficient oxygen may cause a breakdown of glucose into

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The crown of the mammalian tooth is covered with

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The element common to protein carbohydrate and lipid is

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One of the accessory organs of the digestive system is the

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