A) A decreased level of progesterone causes osteoporosis in old people.
B) Accumulation of uric acid crystals in joints causes their inflammation.
C) The vertebral column has 10 thoracic vertebrae.
D) The joint between adjacent vertebrae is a fibrous joint.
Correct Answer: B
Solution :
Vertebral column has 12 throacic vertebrates. The joints between adjacent vertebrae are cartilaginous joint which permits limited movements. Progesterone is secreted by corpus luteum which supports during pregnancy in females.
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