Question

the essential whorls of the flower are.............. .

Answer 1

hey
here's your answer !!

the essential whorls of the flower are
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( a ) androecium ( anthers and filaments ) .
( b ) gynoecium ( stigma , style and ovary ) .
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These parts of the flower are called the essential whorls of the flower because -- they are directly involved in the process of reproduction.
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Hope it helps !!

Answer 2

$Answer$

The essential whorls of a flower are the Androecium and Gynoecium.