3.2 Read the passage below.

"Datura flowers open in the evening and release a powerful fragrance which attracts hawk moths. The Datura produces a highly addictive nectar which ensures that the hawk moths stay longer inside the flower and only visit Datura flowers."

3.2.1 Explain TWO ways in which the Datura plants ensure that they are reproductively isolated.
(2 points)

3.2.2 State TWO other mechanisms that would ensure reproductive isolation in plants.
(6 points)

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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