One of the major differences between the first and second line of defense is that
A. the first line defenses involve the respiratory tract whereas the second line defenses involve the gastrointestinal tract.
B. the first line defenses are anatomical barriers whereas the second line defenses are mechanisms.
C. the first line defenses involve complement proteins whereas the second line defenses involve antibodies.
D. the first line defenses involve complement proteins whereas the second line defenses involve antibodies.
Select your answer:
Topics:
Disease Genetics Bones Biodiversity Conservation Ecology & Organisms Energy, Hydrology, Microbiology Gaseous Exchange in Humans Sexual Reproduction Dyslexia Immunology Skeletal System Fish Health Management Orthopedic Surgeon -ology Autism AwarenessOther quiz:
Lymphatic System › ViewWhich structure is NOT a MALT?
A. spleen
B. tonsils
C. Peyer’s patches
D. appendix
Energy, Hydrology, Microbiology › View
What defines a prokaryotic cell?
A. multicellular, nucleus
B. multicellular, no nucleus
C. unicellular, nucleus
D. unicellular, no nucleus