Microorganisms that live all over your skin can’t get through your skin unless it’s broken.
Your body has a two-line defence system against pathogens (germs) that make you sick. Pathogens include bacteria, viruses, toxins, parasites ...
We can’t see them. We can’t hear them or feel them, but they are with us. There are 10 trillion ...
In this activity, students use drama to model science ideas about immune response to pathogenic microorganisms.
Since their discovery by Antonie van Leeuwenhoek, microorganisms have been found in almost every environment on earth. Microorganisms are capable ...
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