What are bacteria?A non-cellular infectious agent.A single-celled organism that can both benefit and harm humans. A microbe that is pathogenic.A microorganism that invades the cells of a host.
Question
What are bacteria?A non-cellular infectious agent.A single-celled organism that can both benefit and harm humans. A microbe that is pathogenic.A microorganism that invades the cells of a host.
Solution
Bacteria are single-celled organisms that can both benefit and harm humans. They are not non-cellular infectious agents - that description is more fitting for viruses. Bacteria are indeed microbes, but they are not always pathogenic, meaning they do not always cause disease. Some bacteria are beneficial and necessary for human health. Lastly, bacteria do not typically invade the cells of a host. Instead, they live on surfaces of the body like the skin or in the gut. However, some types of bacteria can invade cells and cause illness.
Similar Questions
Provide definitions for the terms microorganisms and pathogens.
Bacteria are small living cells that either damage cells directly or by producing (poisons).
A pathogen is a microbe that Blank______.Multiple choice question.normally lives on the bodyis a disease causing agentdoes no harm, and in fact can be beneficialcauses disease only in unusual situations, such as when a host is immunosuppressed
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