Human Defense Systems Against Pathogens

With so many harmful agents around us, how do humans stay healthy? Find out by watching an informative video from a larger biology playlist that details our defenses against a variety of pathogens. The narrator describes the body systems, organs, and specific cells that deal with damaging bacteria and viruses and how they work to prevent illness.

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CCSS: Adaptable
Instructional Ideas

  • Make the resource a focal point in an immunity lesson
  • Before watching the video, have students make a list of all of the ways the body defends against pathogens
Classroom Considerations

  • Be sure the class is up to speed on types of pathogens; try a video to get them prepared
Pros

  • The video is short and to the point, perfect for an overview or introduction to the topic
  • Animations convey how each cell or system functions as a part of health and immunity
Cons

  • None
Common Core