Animals use nitrogen in the form of_________?

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Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?

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Ascorbic acid is another name for which vitamin A,B,C or D?

A. A B. B C. C D. D...

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CCTV stands for..? A..Care Television Unit B..Closed Circuit Television C..Critical Care Television D..Both A and C...

Which organ of the body purifies the blood ?

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Structure of DNA was given by ?

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