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Biology

Biology
Main nitrogenous product formed in man

Urea
Ammonia
Ammonium nitrate
Uric acid

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Biology
Which of the following can be a symptom of AIDS?

Severe weight gain
Hair loss
Tiredness
All listed here

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Biology
Rain water helps to increase the ____ to some extent.

nitrogen contents
calcium contents
phosphorous contents
potash contents

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Biology
Deficiency of which minerals causes goitre?

Iodine
Magnesium
Sulphur
Calcium

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Biology
Amount of blood found in the body of man

25% of total body weight
10% of total body weight
9% of total body weight
7% total body weight

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Biology
What do eukaryotic cells have that prokaryotic cells do not?

Cytoplasm
Nucleus
Ribosomes
DNA

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