State any four devices found in flowers with favour cross pollination.
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Explanation:
The special devices or adaptations which favour cross pollination are as follows:
Dicliny or unisexuality: Flowers are unisexual. ...
Self-sterility: ...
Dichogamy: ...
Herkogamy: ...
Heterostyly: ...
Advantages: ...
Disadvantages:
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Answer:
The two contrivances in flowers are-
1. The property of self-fertilization.
2. Unisexuality.
3. Dichogamy- The differing maturation timings of gynoecium and androecium.
4. The various structural barriers.
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