The thumb and big toe are similar in that
A. both are composed of sesamoid bones.
B. both have two rather than three phalanges.
C. both contain carpal bones.
D. each have three metatarsals.
E. both have three rather than two phalanges.
Answer: B
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Displacement of a joint is called
A. dislocation. B. sprain. C. bursitis. D. arthritis.
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Connie recently celebrated her 45th birthday. She feels okay most of the day, but in the
morning, for about a half hour after she gets out of bed, all of her joints feel stiff. This is due to A) torn ligaments. B) changes in collagen structure. C) nerve damage. D) sprains.
Meiosis results in sperm formation in males. The critical meiotic step(s) that will ensure proper chromosome number in the resulting offspring is (are) ___.
A. the separation of sister chromatids B. fertilization of the egg C. the separation of homologous chromosomes D. both a and c