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Biology/viruses and bacteria


Peter wrote at 2009-03-24 01:29:53
Viruses lack many of the characteristics of life, but many scientists argue that they still should be considered alive. They are considered to be on the "edge of life."

Noah wrote at 2013-11-06 02:12:02
There is a serious mistake in the other answer.  One of the defining features of a bacterium is that it DOES NOT have a nucleus.  Its genetic material (or hereditary) is spread throughout the cytoplasm of the cell.  A virus is abiotic, meaning it is not alive.  It does not have a nucleus.


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Walter Hintz


Science teacher for over 50 years. MSc. in biology. I can answer questions in general biology, zoology, botany, anatomy and physiology and biochemistry.


I have a MSc in biology and have been a science teacher for over 50 years. At present I am a faculty member at a college and a science consultant at seven catholic schools.

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