Intestine develops from

Options

A. Ectoderm
B. Endoderm
C. Mesoderm
D. Pharyngeal pouch.

Answer

To answer the question "Intestine develops from," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Germ Layers**: Understand that during embryonic development, there are three primary germ layers: ectoderm, mesoderm, and endoderm. Each layer gives rise to different tissues and organs in the body.

2. **Focus on the Endoderm**: The endoderm is the innermost germ layer. It is crucial to note that it plays a significant role in the development of the digestive system.

3. **Formation of the Endoderm**: The endoderm is formed when some cells of the blastocyst separate from the inner cell mass and migrate towards the blastocele. This process occurs during the early stages of embryonic development.

4. **Development of the Intestine**: Once the endoderm is established, it differentiates to form the primitive gut. This primitive gut eventually develops into the alimentary canal, which includes the intestine.

5. **Conclusion**: Based on the development process, the intestine originates from the endoderm layer.

### Final Answer:
The intestine develops from the **endoderm**.

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