Which of the following is incorrect for reproduction?

Options

A. Unicellular organisms reproduce by cell-division
B. Reproduction is a characteristic of all living organisms
C. In unicellular organisms, reproduction and growth are linked together
D. Non-living objects are incapable of reproducing

Answer

To determine which statement about reproduction is incorrect, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Evaluate the First Statement**:
- "Unicellular organisms reproduce by cell division."
- This statement is **correct**. Unicellular organisms, such as bacteria and amoeba, reproduce asexually through a process called cell division (binary fission).

2. **Evaluate the Second Statement**:
- "Reproduction is a characteristic of all living organisms."
- This statement is **incorrect**. While reproduction is a common characteristic of living organisms, there are exceptions. For example, mules are living organisms but are typically sterile and cannot reproduce. Therefore, reproduction is not a characteristic of all living organisms.

3. **Evaluate the Third Statement**:
- "In unicellular organisms, reproduction and growth are linked together."
- This statement is **correct**. In unicellular organisms, growth often leads to reproduction through cell division. As the cell grows, it eventually divides, leading to the creation of new cells.

4. **Evaluate the Fourth Statement**:
- "Non-living objects are incapable of reproduction."
- This statement is **correct**. Non-living things, such as rocks and minerals, do not have the biological processes necessary for reproduction. They can undergo physical changes or growth, but they do not reproduce.

### Conclusion:
The incorrect statement regarding reproduction is the **second statement**: "Reproduction is a characteristic of all living organisms."

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