Viruses are intermediate between living and non-living entities. They resemble living in :

Options

A. having high specific gravity
B. presence of energy storing system
C. presence of growth and division
D. taking over biosynthetic machinery of host cell

Answer

**Step-by-Step Solution:**

1. **Understanding Viruses**: Begin by recognizing that viruses are unique entities that do not fit neatly into the categories of living or non-living. They exhibit characteristics of both.

2. **Non-Living Characteristics**: Identify the non-living characteristics of viruses:
- They do not have a cellular structure (non-cellular organization).
- They are inactive outside of a host organism.
- They do not carry out respiration or cellular metabolism when not inside a host.

3. **Living Characteristics**: Next, consider the characteristics that resemble living organisms:
- Viruses have a high specific gravity.
- They possess an energy-storing system when inside a host.
- They can grow and divide, but only by taking over the machinery of a host cell.

4. **Biosynthetic Machinery**: Emphasize that viruses replicate by hijacking the biosynthetic machinery of the host cell. This is a key feature that aligns them more closely with living organisms when they are inside a host.

5. **Conclusion**: Conclude that viruses are considered intermediate between living and non-living entities primarily because they can take over the host's biosynthetic machinery to reproduce, which is a characteristic of living organisms.

**Final Answer**: Viruses resemble living entities in that they take over the biosynthetic machinery of the host cell.

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