The part of the nervous system that controls voluntary activities is the:
a. central nervous system
b. autonomic nervous system
c. somatic nervous system
d. peripheral nervous system
Ans: c. somatic nervous system
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Which structure is most likely to be penetrated during a subclavian vein puncture if the needle is inserted too far posteriorly?
A) internal jugular vein B) common carotid artery C) subclavian artery D) lateral cord of brachial plexus E) thoracic duct
Although most fishes are ectotherms, the efficiency of secondary production by fishes is substantially lower than the average of 50 percent measured for terrestrial ectotherms
What difference between aquatic and terrestrial environments might account for this difference?
Which type of muscle tissue is voluntary and under conscious control?
A. Smooth B. Skeletal C. Cardiac D. All of the answers are correct
A person with type A blood has ________.
A. anti-A antibodies B. no antigens C. anti-B antibodies D. A and B antigens