Question

What is Heterospry? Briefly comment on its significance

Answer 1

it is production of spores of two different sizes and sexes by sporophytes of land plants

Answer 2

Answer:

Heterospory

$Heterospory \: is \: a \: phenomenon \: in \: which \: two \: kinds \: of \: spores \: are \: borne \: by \: the \: same \: plant. \: These \: spores \: differ \: in \: size. \: The \: smaller \: one \: is \: known \: as \: microspore \: and \: the \: larger \: one \: is \: known \: as \: megaspore. \: Heterospory \: is \: thus \: considered \: an \: important \: step \: in \: evolution \: as \: it \: is \: a \: precursor \: to \: the \: seed \: habit.$

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