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Viruses attack and organism and try to harm it but most of the time the organisms white blood cells fight the virus off and make a person sick while doing so.  I want to know how viruses form

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I know that viruses have the ability to evolve and change. I also know that they cannot survive without a "host" or without feeding off another living thing.I want to learn about how they spread and what makes them all different.
I learned that virus's spread by attaching to cells and basically preventing them from doing their job and using them to multiply, often destroying the cell in the process.

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Viruses have enter another living thing in order to cause damage and are harmless just sitting around on the surfave of something
Cells can adapt and don't always recognize the virus cells

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I know that virus are capable of evolving and, in order to stay alive they must reproduce in the the body. I want to know how viruses get their name and how they develop. One thing that I learned is that viruses have no membrane, and in order to invade a cell they connect to the receptors.

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Viruses have the ability to evolve even though scientist do not qualify them as living beings most of the time.  I want to learn how the viruses are able to be created in the first place and where they start to spread

Something that I learned in the video today was that it is unknown when viruses first started but it is believed that they showed up a little after unicellular organisms

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I know that viruses don't always affect all living beings. Why did the covid-19 virus start spreading in 2019 instead of 2010? Was Covid-19 nonexistent or not harmful to humans at the time?

I learned that some viruses after infecting a cell with there genes the cell can explode with replicas of that virus.

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I know that viruses can only survive for a long period of time if they have a host
I want to know how viruses can be spread so fast
I learned viruses can evolve to stay harmful

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I know that a virus can't be working unless it is in the body of something else. How can there be so many different viruses that nobody knows about?

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A virus is a infection that can spread rapidly if not contained. I know that there are good viruses and bad viruses for different organisms. A virus also needs a host to replicate it self. They also have the same components as bacteria and can not die for antibiotics.  Viruses use cell receptors of organisms to multiply. Virus cells are very small, they are simpler than bacteria. They are only made up of DNA and RNA.

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I know that a virus is dependent on a host, therefore it cannot function unless it has another body to connect/attach itself to. I would like to know how long can a virus last for? How long can it stay on its host before dying?

I learned that when a virus enters a cell, they "communicate" with the cell's receptors to basically gain control over the cell.

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I know that a virus can evolve and there can be multiple strands of the virus. I want to know why/how it was able to travel so quickly.

I learned that a virus holds its own genetic material and that they are smaller and simpler compared to bacteria.

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What can viruses achieve in size how big can they be at a maximum or is there even a maximum mass for any given virus. As well as their possible life span range. Can they live indefinitely or is there and expiration on their existence even when given a steady supply of their needs.

Viruses can Evolve over a very small time period just to maintain the right receptors to make contact with the cells in order to interact with a host.