Final answer:
Datura plants ensure pollination by producing addictive nectar and releasing a potent fragrance to attract hawk moths.
Explanation:
Datura plants ensure their pollination through the following ways:
- Production of a highly addictive nectar that attracts hawk moths, ensuring they stay longer inside the flower and only visit Datura flowers.
- Releasing a powerful fragrance in the evening to attract hawk moths, facilitating pollination through their prolonged visits.
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