Seed coat is not thin, membranous in

Options

A. Gram
B. Miaze
C. Coconut
D. Groundnut

Answer

To answer the question "Seed coat is not thin, membranous in," we need to analyze the characteristics of the seed coats of various plants mentioned.

### Step-by-Step Solution:

1. **Understanding Seed Coat**: The seed coat is the outer protective layer of a seed. Its primary function is to protect the seed from physical damage and desiccation.

2. **Identifying Seed Coat Types**: Seed coats can vary in thickness and texture. They can be thin and membranous or thick and hard.

3. **Analyzing Given Options**: The question implies that we need to find a plant whose seed coat is thick and not thin or membranous.

4. **Evaluating Each Option**:
- **Coconut**: The seed coat of coconut is known to be thick and hard. It is not thin or membranous.
- **Gram**: The seed coat of gram is thin.
- **Maize**: The seed coat of maize is also thin.
- **Groundnut**: The seed coat of groundnut is thin as well.

5. **Conclusion**: Based on the analysis, the only plant listed that has a thick and hard seed coat is the coconut.

### Final Answer:
The seed coat is not thin, membranous in **Coconut**.