A person with type O blood can donate to a patient with type A because the donor’s blood

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Human height is an example of a feature which depends on both

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Environmental pollutants which can work through the media of water, soil and air include

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Some of the diseases caused by bacteria are

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Which of the following is a measure for the control of bilharzia?

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Colonization of a bare rock surface is termed

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In a tropical rain forest, non-epiphytic ferns and allies occur as

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In spite of the removal of carbondioxide from the atmosphere, its amount remains more or less constant because

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The depth of illumination in a water body can be measured with a

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Which of the following ions is involved in the conduction of the nerve impulse?

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The gland directly affecting metabolic rate, growth and development is known as

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The process of walking is under the control of the part of the brain called

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