Read the following statements.How many of the given statements is(are) correct?

Options

A. In unicellular organisms term growth and reproduction are used interchangably
B. Reproduction cannot be a defining character of living organism
C. Mules and worker bee are sterile
D. Regeneration is a kind of asexual reproduction in which fragmented organism regenerates the lost part

Explanation

To determine how many of the given statements are correct, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement 1: "In unicellular organisms, the term growth and reproduction are used interchangeably."**
- **Analysis**: In unicellular organisms, such as bacteria, growth can be defined as an increase in cell size and number. Since these organisms reproduce by cell division, the process of growth (increase in cell number) is synonymous with reproduction.
- **Conclusion**: This statement is **correct**.

2. **Statement 2: "Reproduction cannot be a defining character of living organisms."**
- **Analysis**: While reproduction is a common characteristic of living organisms, it is not universally applicable, especially in the case of sterile organisms (like mules and worker bees) which do not reproduce. Therefore, reproduction alone cannot be considered a defining characteristic of all living organisms.
- **Conclusion**: This statement is **correct**.

3. **Statement 3: "Mules and worker bees are sterile."**
- **Analysis**: Mules (the offspring of a horse and a donkey) and worker bees (female bees that do not reproduce) are indeed sterile and cannot produce fertile offspring.
- **Conclusion**: This statement is **correct**.

4. **Statement 4: "Regeneration is a kind of asexual reproduction in which fragmented organisms regenerate the lost part."**
- **Analysis**: Regeneration refers to the ability of certain organisms to regrow lost body parts. This process can be considered a form of asexual reproduction because it allows for the organism to reproduce by creating new individuals from fragments of the original organism.
- **Conclusion**: This statement is **correct**.

### Final Conclusion:
All four statements are correct. Therefore, the answer is that **all statements are correct**.

### Summary of Correct Statements:
1. In unicellular organisms, growth and reproduction are used interchangeably. (Correct)
2. Reproduction cannot be a defining character of living organisms. (Correct)
3. Mules and worker bees are sterile. (Correct)
4. Regeneration is a kind of asexual reproduction. (Correct)

### Total Number of Correct Statements:
**4 statements are correct.**

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