There is no natural death in single celled organisms like Amoeba and bacteria because

Options

A. they can not reproduce sexually
B. they reproduce by binary fission
C. parental body is distributed among the offspring.
D. they are microscopic

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks why there is no natural death in single-celled organisms like Amoeba and bacteria.

2. **Identifying Characteristics of Unicellular Organisms**: Recognize that Amoeba and bacteria are unicellular organisms, meaning they consist of a single cell.

3. **Reproduction Method**: These organisms primarily reproduce asexually through a process known as binary fission. In binary fission, the single cell divides into two identical daughter cells.

4. **Process of Binary Fission**:
- The process begins with the growth of the organism until it reaches maturity.
- The nucleus of the organism divides first, followed by the division of the cytoplasm.
- This results in the parent organism splitting into two separate cells.

5. **Distribution of Parental Body**: During binary fission, the parental body (the original single-celled organism) is effectively distributed among the offspring. This means that the original organism does not die; instead, it transforms into two new organisms.

6. **Conclusion**: Since the parent cell divides into two daughter cells, there is no concept of natural death as seen in multicellular organisms. The parent organism continues its existence through its offspring.

7. **Final Answer**: The correct reason for the absence of natural death in single-celled organisms like Amoeba and bacteria is that the parental body is distributed among the offspring.

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