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Biology

Biology
Accumulation of which one of the following in the leads to cramp?

Pyruvic acid
Ethanol
Lactic acid
Glucose

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Biology
Which part of the brain plays an important role in motor control?

Pons
Medulla
Cerebrum
Cerebellum

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Biology
Precentage of CO2 found in exhaled air

0.12
0.08
0.04
0.16

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Biology
During rainy season wooden doors are difficult to open or closure because of ?

Imbibition
Diffusion
Osmosis
Plasmolysis

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Biology
Which of the following vitamin helps in clotting of blood?

Vitamin B2
Vitamin B1
Vitamin D
Vitamin K

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Biology
Which of the following is true about blood plasma?

The main protein component is hemoglobin
It is the same as serum but without the clotting proteins
It is a faint yellow fluid
It is about 90% water

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