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Biology

Biology
Goitre is caused by the deficiency of ________

Chlorine
Calcium
Iodine
Zinc

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Biology
One of the following cannot be performed by animals

Respiration
Reproduction
Digestion
Photosynthesis

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Biology
Biological control is to check growth of

Animals
Plants
One pest by another
Weeds

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Biology
Medulla oblongata is a part of which of the following?

Lungs
Brain
Heart
Stomach

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Biology
How many vertebrae found in human vertebral column

25
42
33
22

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Biology
Which chromosomes are identical to each other on the basis of their morphology ,position of centromere and other characteristics?

Heterozygous chromosomes
Homologous chromosomes
Sex chromosomes
Autosome chromosomes

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