<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Dismiss
Skip Navigation

Barriers to Pathogens

Introduces the immune system's first line of defense, the skin and mucous membranes.

Atoms Practice
Estimated1 minsto complete
%
Progress
Practice Barriers to Pathogens
Practice
Progress
Estimated1 minsto complete
%
Practice Now
Barriers to Pathogens

Image Attributions

Explore More

Sign in to explore more, including practice questions and solutions for Barriers to Pathogens.

Reviews

Please wait...
Please wait...

Original text