Intergration system in the body is

Options

A. Nervous system
B. Endorine system
C. Circulatory system
D. Nervous and Endocrine system.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the integration system in the body. We need to identify which system or systems are responsible for coordinating and integrating the various functions of the body.

2. **Analyzing the Options**:
- **Option 1: Nervous System**: The nervous system is a network of nerve cells and fibers that transmit nerve impulses throughout the body. It plays a critical role in quick responses and coordination.
- **Option 2: Endocrine System**: The endocrine system consists of glands that secrete hormones. These hormones regulate various body functions over a longer duration compared to the nervous system.
- **Option 3: Circulatory System**: The circulatory system includes the heart and blood vessels, responsible for transporting blood and nutrients but does not directly integrate body functions.
- **Option 4: Nervous and Endocrine Systems**: This option suggests that both the nervous and endocrine systems work together to integrate body functions.

3. **Evaluating the Integration Role**:
- The nervous system provides rapid responses and immediate coordination through nerve impulses.
- The endocrine system, on the other hand, regulates longer-term processes through hormonal signals.
- Both systems work together to ensure that the body responds appropriately to internal and external stimuli.

4. **Conclusion**: After evaluating all the options, it is clear that the integration system in the body is best described by **Option 4: Nervous and Endocrine Systems**. These two systems work in tandem to coordinate and regulate bodily functions effectively.

**Final Answer**: The integration system in the body is the nervous and endocrine systems.

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