What are molecules on cells that the immune system recognize either as part of the body or as coming from outside the body?
A. antibodies.
B. antigens.
C. T cells.
D. B cells.
Select your answer:
Topics:
Cardiology Lipids Central Nervous System Anatomy - Cellular Respiration Carbohydrates / Fat-soluble Vitamins Oronasal Suctioning Disease, Illness and Sickness Muscle Tissues Endocrine System Bacteria, Viruses, Protozoa Fungi Hemodynamic Disorder Respiration Nutrition form 2 Biology Assessment The Vascular System and Blood FlowOther quiz:
Trauma › ViewA 33 year old male cut himself with a hunting knife. He has a large flap of skin partially hanging off of his arm. The wound would BEST be described as a(n):
A. laceration
B. abrasion
C. amputation
D. avulsion
Musculoskeletal System › View
Which of the following is not a characteristic of all muscle types?
A. Flexibility
B. Contractibility
C. Elasticity
D. Excitability