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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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
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.
Displacement of a joint is called
A. dislocation. B. sprain. C. bursitis. D. arthritis.
Why do males typically have lower voices than do females?
What will be an ideal response?