Answer:
The enveloped viruses are resistant to disinfectants.
Explanation:
The outer covering or the envelope in the virus comes from the infected cell. This envelope is formed by the process called as budding off, from the host cell. The envelope that covers the virus provides resistance to various disinfectants and prevent virus from damage. The outer coat (envelope) is formed of a small part of cell membrane.
The virus that lyses and kills the cell immediately is less worse than the enveloped virus. The virus that kills cells immediately prevents the host cell from continuously synthesizing new virus particles. Thus, no more viral particles can be produced by the host cell. So, envelope viruses are worse that viruses that directly kills the host cell.
The horse has a non-communicable disease.
Explanation:
- In the given situation, only one horse is effected this suggest that the cause of the disease is not present in any other horse.
- Though the horses were sleeping in same barn and sharing the same resources they did not get the disease. This clearly states that the disease does not spread from one individual to other but remains confined to only effected individual.
- Thus it is a non infectious or non-communicable disease.
Answer:2000x
Explanation:The maximum resolution, or resolving power (the ability to distinguish two points) of a compound light microscope is 0.2 µm; maximum magnification is 2000x.
4. nucleoid region
Bacterial cell's do not have a nucleus; their DNA is found in this region.