An organism is reproducing by asexual method of reproduction. The organism splits into two identical daughter cells. This happens when the cellular organism reaches to its maximum size of growth and then the nucleus of the organism elongates and divides into two parts. After that the cytoplasm also divides into two parts along with cell.
Name the organism that divides by the above process.

Options

A. Yeast
B. Amoeba
C. Algae
D. Fungus

Answer

To solve the question, we need to identify the organism that reproduces asexually by the process of binary fission, where the organism splits into two identical daughter cells after reaching its maximum size. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Process of Binary Fission
Binary fission is a type of asexual reproduction where an organism divides into two equal parts. This process involves the following steps:
- The organism grows to its maximum size.
- The nucleus elongates and divides into two nuclei.
- The cytoplasm divides, resulting in two identical daughter cells.

### Step 2: Identify the Characteristics of the Organism
From the description, we note:
- The organism reproduces asexually.
- It splits into two identical daughter cells.
- The division involves the elongation and division of the nucleus followed by the division of the cytoplasm.

### Step 3: Consider Possible Organisms
Now, we need to consider which organisms reproduce by binary fission:
- **Yeast**: Reproduces by budding, not binary fission.
- **Amoeba**: Reproduces by binary fission, fitting the description perfectly.
- **Algae**: While some algae reproduce asexually, they do not typically do so by binary fission.
- **Fungi**: Generally reproduce through spore formation, not binary fission.

### Step 4: Conclude the Answer
Based on the characteristics and the process described, the organism that divides by binary fission is **Amoeba**.

### Final Answer
The organism that divides by the process described is **Amoeba**.

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