Select the correct statement with respect to locomotion in humans

1. A. A decreased level of progesterone causes osteoporosis in old people.
2. B. Accumulation of uric acid crystals in joints causes their inflammation.
3. C. The vertebral column has 10 thoracic vertebrae.
4. D. The joint between adjacent vertebrae is a fibrous joint.

Attempt this NEET 2013 Biology question free — pick an option to reveal the correct answer and a step-by-step explanation. Then join NEET Mastery Quest to practise 15,000+ PYQ and 2027-syllabus questions.