It depends on the kind of Bacteria you are talking about. Most do not depend on a host and live on their own. Some, such as E. coli can live outside a host at least for some time. A few are entirely dependent on a host.
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No. A virus does, because it's no living organism itself. A bacteria is a cell and does not need another cell to reproduce. Check Google with bacteria vs. Virus:)
no it doesn't need a host
Yes.
no
no
It is bacteria that can grow and reproduce without a live host
Bacteria do not need a host organism to live and multiply.
Not really no
Facultative anaerobic bacteria.
Bacteria that invade a host organism and obtain nutrients from the host's cell are pathegonic bacteria.
It is bacteria that can grow and reproduce without a live host
Bacteria do not need a host organism to live and multiply.
Bacteria are living organisms, because they can reproduce on their own without needing a host.
Bacteria lacking a nucleus
Archaebacteria called extremeophiles have some species that live entirely anaerobically. Bacteria [and other organisms] that respire using O2 as the 'final' electron acceptor are termed to be Aerobic, while bacteria [and the odd organism] that has the biochemical capacity to Live without O2 are termed to be Anaerobic.
Not really no
Anaerobic bacteria can live without oxygen. In fact, oxygen is toxic to many of them.
Facultative anaerobic bacteria.
Pubic lice can live less than a day without a human host.
Endoparasites: Live inside the host eg. Plasmodium, Tapeworm, Roundworms, Bot fly ect.
Bacteria that invade a host organism and obtain nutrients from the host's cell are pathegonic bacteria.
Bacteria that must have oxygen to survive are called obligate aerobes. Some bacteria can live with or without oxygen and are called facultative anaerobes.Anaerobes = No oxygenAerobes = Oxygen