In Cattle, leather is formed by

Options

A. entire dermis
B. outer layer of dermis
C. squamous epidermis
D. entire epidermis

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of Skin**: The skin of mammals, including cattle, consists of two main layers: the outer epidermis and the inner dermis. The epidermis is the outer layer, while the dermis is the thicker inner layer.

2. **Identifying the Layers of Epidermis**: The epidermis itself is made up of five layers:
- Stratum corneum (outermost)
- Stratum lucidum
- Stratum granulosum
- Stratum spinosum
- Stratum basale

The epidermis primarily consists of squamous cells, especially in the outermost layer.

3. **Understanding the Dermis**: The dermis is composed of two layers:
- The outer papillary layer
- The inner layer, which contains fat deposits.

4. **Leather Formation in Cattle**: When it comes to leather production from cattle, the epidermis contributes minimally (about 1% of the total thickness). The dermis, on the other hand, constitutes about 85% to 90% of the leather's thickness.

5. **Conclusion**: Since the majority of the leather is derived from the dermis, and the epidermis (including the squamous epidermis) is not significantly involved, the correct answer to the question "In cattle, leather is formed by" is the entire dermis.

**Final Answer**: Entire dermis.

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