Topics: Body Defense Quiz
Which of these is not an external defence mechanism?
A. blood
B. ear wax
C. sebum
D. tears
Select your answer:

Topics:
Carbohydrates, Proteins and Lipids Balanced Diet History of Healthcare Anatomy Muscles Heart and Circulatory System Cells, Genetics & Heredity Review Non-Communicable Disease Cell Division Nutrition, Neuroscience & Mental Health Communicable Disease Pharmacology Calculations Cell Review Nutrition and Human Digestive System Eye Physiology TransportationOther quiz:
Cell and Tissue › ViewThis type of cell carries oxygen throughout the body.
A. gamete
B. platelet
C. white blood cell
D. red blood cell
Molecular Genetics › View
A small circular piece of DNA found in bacteria are called …
A. recombinants
B. vectors
C. plasmids
D. prokaryotes