In coconut the endosperm is free-nuclear endosperm

Answer

**Step-by-Step Solution:**

1. **Understanding Endosperm**: The endosperm is a tissue that provides nutrition to the developing embryo in seed plants. In the case of coconuts, the endosperm is triploid, meaning it has three sets of chromosomes.

2. **Scientific Name**: The scientific name for coconut is *Cocos nucifera*.

3. **Types of Endosperm in Coconut**: In coconuts, there are two types of endosperm:
- **Free Nuclear Endosperm**: This is the liquid part known as coconut water. It is characterized by the absence of closely packed cells, which gives it a liquid nature.
- **Cellular Endosperm**: This is the solid part known as the kernel, which surrounds the coconut water.

4. **Formation of Free Nuclear Endosperm**: The free nuclear endosperm forms when the primary endosperm nucleus undergoes division. This division is termed "free nuclear division," which occurs without the formation of cell walls. As a result, many free nuclei are produced, leading to the formation of the free nuclear endosperm.

5. **Characteristics of Free Nuclear Endosperm**: The lack of cell wall formation during the division process allows the endosperm to remain liquid, contributing to the characteristic coconut water we are familiar with.