Final answer:
Datura plants ensure reproductive isolation through addictive nectar and evening flowering, while other mechanisms include geographical and temporal isolation.
Explanation:
Two ways in which Datura plants ensure reproductive isolation are:
- Production of highly addictive nectar to attract specific pollinators like hawk moths.
- Opening flowers in the evening to synchronize with the activity of the target pollinators.
Two other mechanisms ensuring reproductive isolation in plants include:
- Geographical isolation preventing gene flow between populations.
- Temporal isolation through differences in flowering times to avoid hybridization.
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