Contribution of scientist : Van Helmont
– Supported theory of abiogenesis who claimed that mice were formed from a dirty sweat soaked shirt When put in dirty barn in dark for $21$ days.
Wings of pigeon, mosquito and bat show
The hypothesis that all photosynthetic organisms require a source of hydrogen was first proposed by
'A brief reduction in size of a population, due to natural calamities, usually leads to random genetic drift'. For this statement, identify the correct example from the following.
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