In the list of organisms given below, those that reproduce by the asexual method are
(i) banana (ii) dog
(iii) yeast (iv) Amoeba

Options

A. (ii) and (iv)
B. (i), (iii) and (iv)
C. (i) and (iv)
D. (ii), (iii) and (iv)

Explanation

To determine which organisms from the list reproduce by asexual methods, we will analyze each organism based on their reproductive methods.

### Step-by-Step Solution:

1. **Identify the Organisms**: The organisms listed are banana, dog, yeast, and amoeba.

2. **Understand Asexual Reproduction**: Asexual reproduction is a mode of reproduction that involves only one parent and does not require the formation or fusion of gametes. Common methods include vegetative propagation, budding, and binary fission.

3. **Analyze Each Organism**:
- **Banana**: Bananas reproduce asexually through vegetative propagation. They have underground stems called rhizomes that bear buds, which can grow into new plants. Therefore, bananas reproduce asexually.
- **Dog**: Dogs reproduce sexually, requiring two parents (male and female) for the fusion of gametes to form a zygote. Thus, dogs do not reproduce asexually.
- **Yeast**: Yeast reproduces asexually by budding. A small bud forms on the parent cell, matures, and eventually detaches to become a new organism. Therefore, yeast reproduces asexually.
- **Amoeba**: Amoeba reproduces asexually through binary fission. The parent cell divides into two daughter cells, making it a form of asexual reproduction. Thus, amoeba reproduces asexually.

4. **Conclusion**: From the analysis:
- Banana: Asexual reproduction
- Dog: Sexual reproduction
- Yeast: Asexual reproduction
- Amoeba: Asexual reproduction

The organisms that reproduce by asexual methods are **banana, yeast, and amoeba**.

### Final Answer:
The organisms that reproduce by the asexual method are: **(i) banana, (iii) yeast, (iv) amoeba**.

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