<span>Different organisms thrive in different biomes. The reason for this is that different organisms have different needs for survival. Climate and nutrition play the biggest part in determining if an organism will live in a biome. If the climate is unfavourable, the organism will either die or simply move to a different flora. The other option is that it could adapt to the conditions of it's current biome but this often takes a much longer time.</span>
Viruses do not carry out respiration. They also do not grow or reproduce on their own. A virus needs a living cell in order to reproduce. The living cell in which the virus reproduces is called a host cell.
Answer:
because,
if somethinggoes wrong it can be dangerous to all