A flower which can be divided into two equal halves in only one plane is
A
zygomorphic
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B
actinomorphic
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C
regular
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D
perfect
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Solution
The correct option is A
zygomorphic
In symmetry, the flower may be actinomorphic (radial symmetry) or zygomorphic (bilateral symmetry). When a flower can be divided into two equal radial halves in any radial plane passing through the centre, it is said to be actinomorphic. A flower which can be divided into two equal halves by only one plane is said to be zygomorphic, e.g., pea, gulmohur, bean, Cassia.