The ________ helps the sperm swim through the semen towards an egg.

Options

A. Head
B. Tail
C. Middle piece
D. Testes

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which part of the sperm helps it swim through the semen towards the egg.

2. **Identifying the Parts of the Sperm**: The sperm consists of three main parts:
- Head
- Middle piece
- Tail

3. **Function of Each Part**:
- **Head**: Contains genetic material and is responsible for fertilization.
- **Middle Piece**: Contains mitochondria that provide energy for movement.
- **Tail**: The tail is responsible for the motility or movement of the sperm.

4. **Conclusion**: Since the question specifically asks about the part that helps the sperm swim, the correct answer is the **tail**. The tail propels the sperm through the semen towards the egg.

5. **Final Answer**: The tail helps the sperm swim through the semen towards an egg.

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