In a healthy well fed individual ______________ is act as an barrier and prevent the entry of pathogens.
B. mucosal membrane
D. all the above
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?