All of the Flower Mechanisms Would Help Prevent Pollination by a Foreign

question 44

Multiple Choice

All of the flower mechanisms would help prevent pollination by a foreign species except

• A)A pollen tube only grows in the style of its own species.
• B)The stigma is sticky mainly to its own species of pollen.
• C)The timing of flowering varies by species and keeps pollinators moving among a limited number of species.
• D)Flowers attract a small number of specialized pollinators,and therefore pollen is not spread equally to all available species of flowers.
• E)Flowers of different species are the same color and attract similar pollinators.

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