Biology, 13.03.2021 05:00 palcochran1313

Darwin suggested that plants pollinated by long tongued insects would benefit by having long flowers. To measure the advantaged of having long flowers, Johnson and Steiner (1997) experimentally shortened 68 of 140 flowers. The remaining flowers were control. One week later, 24 out of the 68 shortened flowers had received pollen, whereas 18 out of the control flowers had received pollen. Estimate the odds ratio of not receiving pollen after flower shortening, as compared to control flowers

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Darwin suggested that plants pollinated by long tongued insects would benefit by having long flowers...