"Complement" refers to a group of
A. white blood cells.
B. antibodies.
C. plasma proteins.
D. molecules on the surface of pathogenic microbes.
C
You might also like to view...
Which of the following blood vessel is used to distribute oxygenated blood to the myocardium?
a) Coronary artery b) Coronary vein c) Coronary sinus d) Vena cava e) Myocardial vein
Which center is located in the pons?
A) inspiratory center B) pacemaker neuron center C) pontine respirator group (PRG) D) expiratory center
Which of the following explains the neural mechanism of an erection?
A. It is an autonomic reflex mediated predominantly by parasympathetic nerve fibers. B. It is a somatic reflex mediated predominantly by parasympathetic nerve fibers. C. It is an autonomic reflex mediated predominantly by sympathetic nerve fibers. D. It is a somatic reflex mediated predominantly by sympathetic nerve fibers. E. It is an exclusively voluntary action mediated by the cerebral cortex.
Which of the following organs secretes glucagon?
a. liver b. anteror pituitary c. posterior pituitary d. adrenal gland e. pancreas