Question
How do flowers reward their insect pollinators? Explain.
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Answer
- Insect pollinated flowers are large, colourful, fragrant and rich in nectar.
- A number of flowers are clustered into an inflorescence to make them conspicuous, when the flowers are small.
- Flowers have nectar glands and are highly fragrant to attract insects.
- The surface of pollen grains is sticky due to exine layer and stigma is sticky due to mucilaginous layer.
- In some species, floral rewards are to provide safe place for laying eggs, e.g. amorphophallus.
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