Bacteria
Bacteria are ancient organisms. Evidence for them exists in the fossil record from more than 3 billion years ago.
Bacteria are ancient organisms. Evidence for them exists in the fossil record from more than 3 billion years ago.
True or False: Not all microbes are harmful to humans.
Not all microbes are harmful to humans. In fact, many of them protect us, helping our bodies function properly and competing with harmful organisms in an eternal contest for habitable space in or on our bodies. Although the microorganisms that cause disease often receive more attention, most microorganisms do not cause illness.
Not all microbes are harmful to humans. In fact, many of them protect us, helping our bodies function properly and competing with harmful organisms in an eternal contest for habitable space in or on our bodies. Although the microorganisms that cause disease often receive more attention, most microorganisms do not cause illness.
The part of the anatomy that has to do with the passage of air and includes the nose, larynx, trachea, and lungs.
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