Lichen is an association between which of the two ?
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Which of the following vitamins help in the absorption of calcium?
Which of the following vitamins contain nitrogen?
Pneumonia is a bacterial disease caused by the type of bacteria called _____________
Through photosynthesis at least a half of the total carbon dioxide fixation on earth is carried out by?
Sexual reproduction in Algae that takes place through fusion of two dissimilar size gametes is called?
In a majority of flowering plants, out of the four megaspores, what is the ratio of functional and degenerate megaspores?
The body of all complex animals consist of only _______ basic types of tissue(s).