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A virus is never "good". There are forms of bacteria that are not harmful and the body needs to preform certain tasks, for example digesting fiber from plants is a job that the bacteria do.
That is not necessarily true:
"...It's is supposed by many evolutionary anthropologists that viruses, specifically retrovirus, which employ the enzyme RNA dependent DNA polymerase (reverse transcriptase), have been responsible for many of the translocations found in mammilian evolution. furthermore, several virus species are responsible for healthy bacterial growth, which, in turn, benefit the human host."
Biophreak
http://www.physicsforums.com/showthread.php?t=339992
"It is possible that telomerase, the enzyme involved in extending the lifetime of cells and maintaining stem cells, evolved from viral enzymes since it's closest relatives are retroviral reverse transcriptase enzymes."
Ygggdrasil
http://www.physicsforums.com/showthread.php?t=339992
Wiki User
∙ 14y ago
Wiki User
∙ 13y agowe will never know as your body is constantly killing viruses and diseases every minute of every day, these viruses and bacteria/fungi/protista are constantly evolving into new species... so the answer is ( there are innumerable viruses capable of harming the human body and we don't know about all of them yet so cant put a number to this answer)
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There are many parts of the human body that viruses cannot invade?
True
What kind of viruses infect humans?
Bacteria,fungi,or parasitic worms invade the human body.
How many antigens are there in the human body?
An antigen isn't supposed to be in your body. That is what an antigen means. So, although there are likely many (bacteria, viruses, pollen, etc.), there is no set number.
How many epiglottis in the human body?
There is one epiglottis in the human body.
What human activities is most closely associated with the emergence of viruses not previously seen in humans?
Likely the human activity that is most closely associated with the emergence of viruses in humans is urbanization. The closeness caused the viruses to promulgate more efficiently than in communities where there not as many people.
There are many parts of the human body that viruses cannot invade?
True
How many white blood cells are there and what are they?
About 25,200,000,000 white blood cells in an average human body. They are part of the immune system and will attack germs, viruses, etc. that are dangerous to the human body.
How many viruses are in human poop?
999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
How can a person get them out of the body?
It depends on what you are trying to get out of the body. A person can get many viruses out of the body with antibiotics. Other viruses require more work.
Why do we do p.e?
First off sex has nothing to do with urinating. Humans or any other animal urinates to rid their body of unwanted viruses, bad cells, and anything that can harm the human body. Urinating is one of the many ways the human body cleans itself.
What kind of viruses infect humans?
Bacteria,fungi,or parasitic worms invade the human body.
How many viruses cause encephalitis?
There are more than a dozen viruses that can cause encephalitis, spread by either human-to human contact or by animal bites
Are there many parts of the body that viruses can't invade?
No.
How many bones in the human body How many muscles in the human body?
there are 600 muscles in the human body and there are,206 bones in the body
How many antigens are there in the human body?
An antigen isn't supposed to be in your body. That is what an antigen means. So, although there are likely many (bacteria, viruses, pollen, etc.), there is no set number.
How many structures in the human body are named?
All of them. A good source is Grey's Anatomy book.
How viruses like hijackers?
Many viruses hide in (or 'hijack') a healthy cell - so as not to be discovered by the body's immune system.
