what is hetrospory? briefly comment on its significance. give two examples.
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Heterospory is a phenomenon in which two kinds of spores are borne by the same plant. These spores differ in size. The smaller one is known as microspore and the larger one is known as megaspore. ... Heterospory is thus considered an important step in evolution as it is a precursor to the seed habit.
Example of heterospory are sellaginela,
salvinia and marsilea etc...
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