- (A) It results from estrogen deficiency.
- (B) Bone eating process takes over bone formation process.
- (C) There is reduction of bone mass and change in chemical composition of the matrix
- (D) It is common in old ag
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- (A) Tracheids
- (B) Sclereids
- (C) Trachea
- (D) Collenchyma cells
- (A) Hypocalcaemia Tatanic spasms.
- (B) Osteomalacis.
- (C) Rickets.
- (D) Tetany
- (A) Cellulose.
- (B) Peptidoglycan and murein.
- (C) Lignin.
- (D) Pectin.
- (A) Progesterone.
- (B) Oestrogen.
- (C) Parathyroid hormone.
- (D) Calcitonin.
- (A) Large number of vacoules in a plant cell.
- (B) Higher ionic concentration inside vacuoles resulting from active pumping of ions at their tonoplastic membrane
- (C) Higher osmotic pressure of the cell vacuole
- (D) both b and c
- (A) Synovial membrane.
- (B) Ligaments.
- (C) Muscles.
- (D) Tendon
- (A) Fibrous joints.
- (B) Cartilaginous joints.
- (C) Synovial joints.
- (D) None of these
- (A) Turgor movement
- (B) Nastic movement
- (C) Tropic movements.
- (D) Growth movement
- (A) A smooth muscle cell.
- (B) A cardiac muscle cell.
- (C) A skeletal muscle cell.
- (D) All of these

