Viruses did not find a place in classification since-

Options

A. They are not truly living
B. They are obligate parasite
C. They are cellular
D. They are hyperparasite

Answer

### Step-by-Step Solution:

1. **Understanding Viruses**: Viruses are unique entities that exhibit characteristics of both living and non-living things. They cannot reproduce independently and require a host cell to replicate.

2. **Living vs Non-Living**: The classification of organisms is primarily based on whether they are considered living or non-living. Living organisms typically have metabolic processes, can grow, reproduce, and respond to stimuli.

3. **Characteristics of Viruses**: Viruses lack cellular structure, do not have metabolic systems, and do not possess the necessary machinery (like ribosomes) for protein synthesis. They are essentially made up of genetic material (DNA or RNA) surrounded by a protein coat.

4. **Obligate Parasites**: Viruses are obligate parasites, meaning they can only replicate inside a living host cell. They hijack the host's cellular machinery to reproduce, which further complicates their classification as living organisms.

5. **Non-Cellular Nature**: Viruses are classified as non-cellular particles because they do not have the cellular structure that is characteristic of living organisms. This non-cellular nature is a significant reason why they do not fit into the traditional classification system.

6. **Conclusion**: The primary reason viruses did not find a place in biological classification is that they are not truly living organisms. They are non-cellular entities that require a host to replicate and do not exhibit the characteristics of living organisms independently.

### Final Answer:
Viruses did not find a place in classification since they are not truly living organisms.

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