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vulnerable when cut
The term is also used in reference to viral infections, even though [[virus|viruses]] are not "organisms" in the strictest sense of the word.
The term is also used in reference to viral infections, even though [[virus|viruses]] are not "organisms" in the strictest sense of the word.
Because the parasite needs an opening in order to enter the hosts body, the host is especially vulnerable if it has recently scraped or cut its skin, although this is not at all necessary for an infection to occur.
There are examples of bacteria growing in [[mutualism|mutualistic]] rather than parasitic fashion. The digestive systems of most organisms, including humans, depend on the presence of beneficial bacteria in order to properly digest food, especially plant matter.
There are examples of bacteria growing in [[mutualism|mutualistic]] rather than parasitic fashion. The digestive systems of most organisms, including humans, depend on the presence of beneficial bacteria in order to properly digest food, especially plant matter.