The part of a rib that articulates with the demifacets on the bodies of vertebrae is the
A. head.
B. tubercle.
C. shaft.
D. tuberosity.
A
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Marianne has small, bruise-like spots on her skin and a low platelet count. These blemishes are most likely
A. pinpricks. B. blood blisters. C. hematomas. D. petechiae.
According to the second law of thermodynamics, when energy is transformed from one kind to another
A. some of it is converted to heat. B. some energy is destroyed. C. new energy is created. D. homeostasis is maintained. E. chemical bonds must be broken.
The region of an enzyme into which the substrate fits is a
A. one-size-fits-all active site. B. highly specific active site. C. highly specific antibody. D. one-size-fits-all antibody.
What cardiac disorder is characterized by heaviness or pain in the chest caused by a temporary or reversible myocardial ischemia?
A. Angina pectoris B. Atherosclerosis C. Myocardial infarction D. Congestive heart failure