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Biology

Biology
Stomata open at night in

C3 plants
CAM plants
Succulent plants
C4 plants

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Biology
It is composed of two polynucleotide chains which are coiled round each other in the form of a double helix.

Fats
None of these
RNA
DNA

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Biology
Goitre is due to the deficiency of

Selenium
Iodine
Zinc
Calcium

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Biology
Pickles, candies ,jams and breads are preserved by the much of adding

Minerals
None of these
Preservattives
Enzymes

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Biology
Which type of cell, skin is made up of:

Permanent tissues
Parenchyma
Epidermal cells
Connective tissue

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Biology
The single membrane surrounding vacuoles in plant cells is known as

Chloroplast
Tonoplast
Symplast
Apoplast

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