The following are the activities of the liver except

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Kidney stone is a disease of the Kidney that result in the

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Which of the following parts of the mammalian skin is directly is directly involved in excretion?

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The upper part of the trachea in mammals is called

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The pulmonary vein carries

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Which of the following tissues is not found in the stem and root of monocotyledons?

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Muscles are attached to bones by means of

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The following are functions of the skeleton except

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The process of anearobic respiration of yeast in sugar solution is known as

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Which of the following statement is correct about diffusion?

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The mechanism of gaseous exchange in living organisms is essentially by

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Spirogyra is regarded as a multicellular plant because

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