Outer and inner layer of seed coat are _______ and________ respectively.

Options

A. Tegmen and testa
B. Hilum and tegmen
C. Testa and tegmen
D. Testa and hilum

Answer

To answer the question about the outer and inner layers of the seed coat, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Seed Structure**: The seed has an outer covering known as the seed coat. This seed coat is essential for protecting the seed and is composed of two distinct layers.

2. **Identifying the Layers**: The seed coat consists of two layers:
- The **outer layer** is called the **testa**. This layer serves as the protective barrier for the seed.
- The **inner layer** is known as the **tegmen**. This layer is located just beneath the testa and also contributes to the protection of the seed.

3. **Final Answer**: Therefore, the outer and inner layers of the seed coat are **testa** and **tegmen**, respectively.