Draw the diagram of a mature embryo sac and show its eight -nucleate, seven-celled nature. Show the following parts-antipodals, synergids, egg, central cell, polar nuclei.

Explanation

### Step-by-Step Solution:

1. **Understanding the Structure**: The mature embryo sac is the female gametophyte of flowering plants, typically consisting of eight nuclei and seven cells. It develops from a single functional megaspore through a process called monosporic development.

2. **Drawing the Outline**: Start by drawing an elongated oval shape to represent the embryo sac. Label the two ends as the "Micropilar End" (top) and "Chalazal End" (bottom).

3. **Indicating Nuclei**: Inside the oval, draw eight small circles to represent the eight nuclei. Arrange them as follows:
- At the Micropilar End: 1 egg cell nucleus and 2 synergid nuclei.
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