The main function of this system is to protect us from infection and disease.
A. digestive system
B. Immune system
C. respiratory system
Topics:Epithelial Tissue Healthcare Systems and Insurance AEMT EMS Systems Life Processes Microbial Growth Communicable Diseases and Immune Response (OCR) Fats And Oil Genetics Vocabulary Physical Balanced Diet Parts of the Brain PHE Parts of Human Body Anatomical Terminology Cell Theory
Other quiz: Characteristics of Life
Organisms, such as bacteria, are ______________ which means they consist of only a single cell.