Which of the following is not a function of locomotion ?
1) Procurement of food
2) Finding mate
3) Peristaltic movements
4) Searching and building of shelter

Options

A. Procurement of food
B. Finding mate
C. Peristaltic movements
D. Searching and building of shelter

Answer

To determine which of the following options is not a function of locomotion, let's analyze each option step by step:

1. **Understanding Locomotion**:
- Locomotion is defined as the movement of a living organism from one place to another. It involves relocating from a point A to a point B.

2. **Evaluating the Options**:
- **Option 1: Procurement of food**:
- Locomotion is essential for organisms to search for and obtain food. Therefore, this is a function of locomotion.
- **Option 2: Finding mate**:
- Locomotion is also necessary for organisms to find mates for reproduction. Thus, this is another function of locomotion.
- **Option 3: Peristaltic movements**:
- Peristalsis refers to the rhythmic contraction and relaxation of muscles, typically occurring in the digestive system to move food along. This movement does not involve relocating from one place to another; it occurs at the same location. Hence, this is not a function of locomotion.
- **Option 4: Searching and building of shelter**:
- Locomotion is required for organisms to search for and construct shelters. Therefore, this is a function of locomotion.

3. **Conclusion**:
- After analyzing all the options, we can conclude that **Option 3: Peristaltic movements** is not a function of locomotion.

### Final Answer:
**Option 3: Peristaltic movements** is not a function of locomotion.