The alpha rhythm of the EEG ________
A) occurs in people who are concentrating or are stressed
B) is abnormal in awake adults
C) occurs in awake adults whose eyes are closed
D) is only detected in people during deep sleep
Answer: C
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At ovulation, a ________ is released from an ovary and carried by a uterine tube towards the uterus.
A. secondary follicle B. mature egg cell C. primary oocyte D. secondary oocyte
How many steps are involved in the extrinsic pathway to the clotting cascade?
a. eight b. seven c. six d. five e. four
How does vaccination work?
A. It is artificially acquired active immunity produced by exposure to antigens in the environment. B. It is artificially acquired passive immunity produced by exposure to antigens in the environment. C. It is artificially acquired passive immunity produced by exposure to altered antigens via medical treatment. D. It is artificially acquired active immunity produced by exposure to altered antigens via medical treatment.
During ventricular systole
A. only the AV valves open. B. the semilunar valves close and the AV valves open. C. only the AV valves close. D. only the semilunar valves close. E. the semilunar valves open and the AV valves close.