The diagram shows how bees visit a species of flowering plant that has tall spikes of flowers. In the flowers at the base of the spike, the carpels are mature but the anthers are not yet mature. In the flowers at the top of the spike, the anthers are mature but the carpels are not yet mature. Which statements are correct? 1 Bees visit two flowers for successful pollination. 2 The difference in maturing times for anthers and carpels ensures pollination between flowers. 3 Seeds will develop first in the flowers at the top of the plant.

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