Which of the following features is common to prokaryotes and rnany eukaryotes?

Options

A. Chromatin meterial present
B. Cell wall present
C. Nuclear membrane present
D. Membrane bound sub-cellular organelles present

Explanation

To determine which feature is common to prokaryotes and many eukaryotes, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Prokaryotes and Eukaryotes**:
- Prokaryotes are unicellular organisms that lack a nucleus and membrane-bound organelles. Examples include bacteria and archaea.
- Eukaryotes are organisms whose cells have a nucleus and membrane-bound organelles. They can be unicellular or multicellular, including plants, animals, fungi, and protists.

2. **Identify Common Features**:
- We need to look for features that are shared between prokaryotes and many eukaryotes.

3. **Evaluate the Options**:
- **Cell Wall**: Present in prokaryotes (like bacteria) and in many eukaryotes (like plant cells). This is a strong candidate.
- **Chromatin Material**: Present only in eukaryotes, not in prokaryotes.
- **Nuclear Membrane**: Present in eukaryotes, absent in prokaryotes.
- **Membrane-bound Organelles**: Present in eukaryotes, absent in prokaryotes.

4. **Conclusion**:
- The only feature that is common to both prokaryotes and many eukaryotes is the **presence of a cell wall**.

### Final Answer:
The feature that is common to prokaryotes and many eukaryotes is the **presence of a cell wall**.

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