Outer seed coat is known as :-

Options

A. Aril
B. Testa
C. Operculum
D. Caruncle

Answer

**Step-by-Step Solution:**

1. **Understanding Seed Structure**: Seeds consist of several parts, including the seed coat, which protects the seed and aids in its development.

2. **Identifying the Seed Coat Layers**: The seed coat has two layers: the outer layer and the inner layer. The outer layer is referred to as the Testa, while the inner layer is known as the Tegmen.

3. **Recognizing Other Terms**: While discussing seed anatomy, terms like Aril, Operculum, and Caruncle may come up, but they refer to different structures or modifications associated with seeds.

4. **Identifying the Correct Term**: Among the options provided, the term that specifically refers to the outer seed coat is Testa.

5. **Conclusion**: Therefore, the outer seed coat is known as Testa.

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