What characteristics apply to all three domains and viruses?
Definition of a Virus
There is some debate among scientists as to whether a virus is alive or not. Viruses are not able to replicate themselves. They require a host cell to complete their life cycles. A virus infects a host, then the host copies the virus, making new infectious particles. While viruses may not technically meet the requirements to be considered alive, they can cause devastating diseases in humans, and should, therefore, be considered important to study.
Answer and Explanation:
The term "three domains" refers to the three domains of life. In essence, this question is asking what characteristics do viruses and living...
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Learn more about this topic:
from College Biology: Help and ReviewChapter 1 / Lesson 9