Which of the following is an example of movement ?

Options

A. Protoplasmic streaming
B. Biting and chewing of food
C. Flexible and extension of Limbs
D. All of the above

Answer

To determine which of the following is an example of movement, we can analyze each option provided:

1. **Protoplasmic Streaming**: This refers to the movement of the cytoplasm within a cell. It is a vital process for transporting nutrients, organelles, and other substances within the cell. This is indeed a form of movement.

2. **Biting and Chewing of Food**: This involves the movement of the jaws and teeth to break down food. This is a clear example of movement as it requires muscular action to perform these functions.

3. **Flexible and Extension of the Limb**: Movements such as shaking hands or extending limbs involve the contraction and relaxation of muscles, which is a fundamental aspect of movement in animals.

Since all three options involve different forms of movement, the correct answer is that all of these are examples of movement.

**Final Answer**: All of the above.

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