What Flower Mechanism(s)would NOT Help Prevent Pollination by a Foreign

question 48

Multiple Choice

What flower mechanism(s) would NOT help prevent pollination by a foreign species?

• 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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