Select your answer:

Topics:
Human Excretory System Healthy Lifestyle Advanced Stretching SM2 Terms for The Skeletal System A&P Musculoskeletal Immunity & Cancer Health and Medicine AEMT EMS Systems Nail Disorders and Diseases Defence against Infectious Diseases Teeths Genetic Diseases Health Related Fitness Skin Structure, Growth & Nutrition Alzheimer DiseaseOther quiz:
Immune system › ViewWhat activates fibrinogen?
A. Thrombin
B. Prothrombin
C. Fibrin
Meiosis and intro to Genetics › View
Recessive alleles are-
A. capital
B. lowercase
C. both
D. neither