By which process substance like carbon dioxide or oxygen can move across the cell membrane?
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Which one of the following does not directly refer to cholesterol?
Most of population in Sri Lanka follows ___________.
Open Market Operations refer to __________
When there is only one buyer and one seller of product, it is called _____ situation.
How many bio-geographical zones are there in India?
Which of the following constitutes highest percentage of Green House gases?
The credit for classifying the elements on the basis of their atomic masses goes to