(a) Draw a diagrammatic sectional view of a mature anatropous ovule and label the following parts in it :
(i) that develops into seed coat.
(ii) that develops into an embryo after fertilization.
(iii) that develops into an endosperm in an albuminous seed.
(iv) through which the pollen tube gains entry into the embryo sac.
(v) that attaches the ovule to the placenta.
(b) Describe the characteristic features of wind pollinated flowers.

Explanation

### Step-by-Step Solution

#### (a) Diagrammatic Sectional View of a Mature Anatropous Ovule

1. **Draw the Ovule**: Start by sketching the outline of a mature anatropous ovule. This should be a curved structure that resembles a bean shape, with one end pointed (the micropyle) and the other end attached to the funicle.

2. **Label the Integuments**:
- Draw two layers surrounding the ovule. The outer layer is the **outer integument** and the inner layer is the **inner integument**.
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