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A complete flower has FOUR whorls. From outermost to innermost they are:
ACorolla, calyx, gynoecium, androecium
BCalyx, corolla, androecium, gynoecium
CAndroecium, calyx, corolla, gynoecium
DGynoecium, androecium, corolla, calyx
Answer & Solution
Correct answer: B. Calyx, corolla, androecium, gynoecium
From outer to inner: CALYX (sepals) → COROLLA (petals) → ANDROECIUM (stamens) → GYNOECIUM (carpels/pistils). Mnemonic: from outside to centre, protective then attractive then male then female.
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