(a) Mention any four strategies adopted by flowering plants to prevent self- pollination.
(b) Why is geitonogamy also referred to as genetical autogamy?

Explanation

### Step-by-Step Solution:

#### (a) Four Strategies Adopted by Flowering Plants to Prevent Self-Pollination:

1. **Dichogamy**: This is a condition where the male and female reproductive parts (anthers and stigma) mature at different times. For example, in the plant Aristolochia, the anthers release pollen before the stigma is ready to receive it, thus preventing self-pollination.

2. **Diclini**: This strategy involves the presence of unisexual flowers on the same plant (monoecious) or on different plants (dioecious). In monoecious plants, both male and female flowers are present, while in dioecious plants, male and female flowers are on separate individuals. This separation reduces the chances of self-pollination.

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