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Question

Under extreme climatic conditions, a biennial plant may complete its life cycle

A
Rapidly
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B
Slowly
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C
Can't complete its life cycle
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D
No effect
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Solution

The correct option is A Rapidly
Under extreme climatic conditions, a biennial plant may complete its life cycle rapidly (i.e., three months instead of two years). This is quite common in vegetable or flower seedlings that were exposed to cold conditions, or vernalized, before they were planted in the ground. This behavior leads to many normally biennial plants being treated as annuals in some areas.

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