The ____ involves physical and chemical barriers to prevent pathogens from entering cells.
A. first line of defense
B. second line of defense
C. third line of defense
D. fourth line of defense
Select your answer:
Topics:
Bone Marrow Histology Facial & Dental Injuries Cell Theory Medicinal use of Microorganisims PHYSIOLOGY OF KIDNEY Effects of Exercise on the Musculoskeletal System Virus, Bacteria, Immunity Cholera Name that Pathogen Aerobic- Cardio Respiratory Endurance Plant Biotechnology Infectious Disease Urinary System, Fluid, Electrolyte and ph Balance Healthcare Delivery Systems and Insurance MitosisOther quiz:
Functional Anatomy in Track & Field › ViewWhich two movements occur at the hip joint?
A. flexion and extension
B. abduction and adduction
C. rotation
D. all of the above
Cell › View
Which of the following is NOT a cell theory.
A. All non-living things are made of cells
B. All cells come from pre-existing cells
C. Cells are the basic unit of structure and function of all living things