Nutrition Quiz

In a healthy well fed individual ______________ is act as an barrier and prevent the entry of pathogens.

A. skin

B. mucosal membrane

C. tissues

D. all the above

Select your answer:
A  B  C  D  E 

Topics:

Healthy Living Food and Nutrition Respiratory System Skeletal System Vocabulary Atoms and Radioactivity Medicine on the Western Front Stress Tissues Viruses Biomolecules Pollution Teeths Immune System Year 7 Nutrition Excretory System Branches of Medicine

Other quiz: Biology

Which form of reproduction only involves 1 parent?

A. asexual

B. sexual