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Biology

111.

N2 content is kept constant in the biosphere due to

Answer: C

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Answer: A

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113.

Which crop helps in nitrogen fixation ?

Answer: B

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Answer: C

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115.

Phycology is the branch of Botany in which we study about-

Answer: A

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116.

Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as

Answer: A

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117.

Which one of the following is a protein fiber?

Answer: C

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Answer: A

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119.

The total number of pairs of Peripheral nerves in man are

Answer: C

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Answer: C

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