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Human blood is a viscous fluid due to____.
Which one of the following is a living fossil of the plant?
Which vitamins is necessary for blood clotting?
Which of the following diseases is caused by a virus?
The cell theory is not applicable to _______.
A form of condensation that reduces visibility and causes breathing problems is
The main factor which determines balance of nature is
Carbon dioxide is released by plants during ______.
Edible part of coconut is ______.
Plants absorb most part of water needed by them through their?
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