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Biology

Biology
Important component that helps in clotting of the blood is called ________ .

Haemoglobin
Serum
Platelets
Plasma

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Biology
The ability to fix atmospheric nitrogen is found in the

Leaves of some crop plants
Some blue-green algae
Cholrella
Some marine red algae

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Biology
Which hormone causes emotional disturbance

Vasopressin
Adrenalin
Thyroxine
Oxytocin

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Biology
Where are chromatids found in a cell?

Anaphase
Prophase
None of these
Metaphase

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Biology
Vitamin K is required for

Respiration
Calcium phosphorus
Blood clotting
Carbohydrate metabolism

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

phosphorous contents
calcium contents
nitrogen contents
potash contents

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