Which of the following are considered as neither living nor non-living
A.Coma patients , B.Prions , C.Viroids , D.Virions , E.Mycoplasmas , F.Ray fungi

Options

A. A,B,D and F
B. B,C,E and F
C. A,B,C and D
D. A,B,C and E

Answer

To determine which of the following are considered as neither living nor non-living, we need to analyze each option based on their characteristics.

### Step-by-Step Solution:

1. **Coma Patients (A)**:
- Coma patients exhibit some metabolic activities (like heartbeat, digestion) but do not respond to their environment. They are in a state where they are not fully alive (due to lack of responsiveness) but also not dead (due to ongoing metabolism).
- **Conclusion**: Coma patients can be considered as neither living nor non-living.

2. **Prions (B)**:
- Prions are misfolded proteins that can cause disease but cannot replicate or survive independently. They are considered infectious agents, but they do not exhibit all characteristics of life unless they are within a host.
- **Conclusion**: Prions can also be classified as neither living nor non-living.

3. **Viroids (C)**:
- Viroids are small infectious agents made of RNA. They do not show any metabolic activity or replication outside of a host. However, they can cause infections and replicate when inside a host.
- **Conclusion**: Viroids can be considered as neither living nor non-living.

4. **Virions (D)**:
- Virions are virus particles that consist of genetic material surrounded by a protein coat. They are inactive outside a host and do not exhibit life characteristics until they infect a host.
- **Conclusion**: Virions can be classified as neither living nor non-living.

5. **Mycoplasmas (E)**:
- Mycoplasmas are a type of bacteria that lack a cell wall. They exhibit all characteristics of living organisms, including growth, metabolism, and responsiveness to the environment.
- **Conclusion**: Mycoplasmas are considered living organisms.

6. **Ray Fungi (F)**:
- Ray fungi are living organisms that exhibit growth, reproduction, and responsiveness to their environment.
- **Conclusion**: Ray fungi are also considered living organisms.

### Final Answer:
The organisms that are considered as neither living nor non-living are:
- A. Coma patients
- B. Prions
- C. Viroids
- D. Virions