Viruses by Biology101.org, created and is maintained by Dr. Anthony D'Onofrio.
Links for What are Viruses?:
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http://www.biology101.org/biologystudyguides/whatisavirus.php
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What is a Virus? by The Encyclopedia of Life.
https://eol.org/docs/discover/viruses -
What is a virus? by the European Virus Archive.
http://www.european-virus-archive.com/article22.html -
What is a virus? by The Hepatitis C Trust, London, United Kingdom.
http://www.hepctrust.org.uk/what-virus -
Viruses by Microbiology online, Microbiology Society, London, United Kingdom.
http://www.microbiologyonline.org.uk/about-microbiology/introducing-microbes/viruses -
Viruses by Microbe World, American Society for Microbiology, Washington, DC, U.S.A..
http://www.microbeworld.org/types-of-microbes/viruses -
It doesn’t breathe, it doesn’t eat, it doesn’t excrete, and it doesn’t grow. By The Science Learning Hub, a national project designed to support the effective teaching of science in New Zealand schools.
https://www.sciencelearn.org.nz/resources/591-viruses -
Viruses by Wikipedia, the free encyclopedia.
https://en.wikipedia.org/wiki/Virus
