Which of these organisms reproduces asexually?

Options

A. Amoeba
B. Humans
C. Dogs
D. Cats

Answer

**Step-by-Step Solution:**

1. **Identify the Organisms**: The question provides four options: amoeba, humans, dogs, and cats. We need to determine which of these organisms reproduces asexually.

2. **Understand Asexual Reproduction**: Asexual reproduction is a mode of reproduction that does not involve the fusion of gametes (sperm and egg). Instead, it typically involves a single organism producing offspring that are genetically identical to itself.

3. **Analyze Each Option**:
- **Amoeba**: This is a unicellular organism that reproduces asexually through a process called binary fission. In binary fission, the amoeba divides into two identical daughter cells.
- **Humans**: Humans reproduce sexually, involving the fusion of male and female gametes.
- **Dogs**: Like humans, dogs also reproduce sexually.
- **Cats**: Cats reproduce sexually as well.

4. **Conclusion**: Among the given options, only amoeba reproduces asexually through binary fission. Therefore, the correct answer is **A. Amoeba**.