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what is photoperiodism?
Answers: 1 Views: 513 Rating: 0 Posted: 12 years ago

many angiosperms flower at about the same time even though there occurance period is different.the flowering is response to changing lenght of days and night as the season progresses...this is photoperiodism.it promotes cross pollination.

Rating: 0 Posted: 12 years ago

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