Atmospheric nitrogen is converted to soil nitrogen for plant use by

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An ecological succcession often leads to

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In an experiment to estimate the volume of air in a soil sample using a measuring cylinder

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Serum differs from blood plasma because

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The chamber of the mammalian heart with the thickest wall is the

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The greatest amount of energy will be obtained by the oxidation of 100kg of

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The production of violet colouration, when dilute NaOH solution is added to a solution of food substance, followed by drops of 1% CuSO4 solution while shaking, indicates the presence of

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For growth to occur in organisms, the rate of

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The inner ear contains two main organs, namely, the

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Short-sightedness can be corrected by lenses which are

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Bacteria in the large intestine of man are important in the

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The scapula and the ischium are part of the

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