- (A) Primary Xylem and secondary xylem.
- (B) Primary xylem and secondary phloem.
- (C) Primary xylem and primary phloem
- (D) Secondary xylem and secondary phloem.
Biology Mcqs
- (A) Open reduction.
- (B) Closed Fixation.
- (C) Open fixation.
- (D) Immobilization
- (A) They are more common than in adult age.
- (B) Occur as a result of bone being thin and weak.
- (C) Due to good blood supply it results in quick healing.
- (D) It involves osteoblasts and osteocytes.
- (A) Lengthening of the body.
- (B) Shortening of the body.
- (C) Widening of body
- (D) Thinning of body
- (A) 7 nm.
- (B) 8 nm
- (C) 16nm
- (D) 10-100 ?m.
- (A) Earthworm
- (B) Round worm
- (C) Tape worm
- (D) Pin worm
- (A) H- zone
- (B) M- Line
- (C) Z- Line
- (D) A band
- (A) Growth inhibitor
- (B) Growth stimulator
- (C) Growth hormone
- (D) None of these
- (A) They are multinucleated.
- (B) They are 10 – 100 ?m in diameter & surrounded by sarcolemma
- (C) They contain O2 storing molecules called hemoglobin.
- (D) Their cytoplasm contains high concentration of carbohydrates
- (A) Gibberellins
- (B) Abscisins
- (C) Auxins
- (D) Cytokinins
